seek-oss / sku

Front-end development toolkit

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An in-range update of prettier is breaking the build 🚨

greenkeeper opened this issue · comments

Version 1.8.0 of prettier was just published.

Branch Build failing 🚨
Dependency prettier
Current Version 1.7.4
Type dependency

This version is covered by your current version range and after updating it in your project the build failed.

prettier is a direct dependency of this project, and it is very likely causing it to break. If other packages depend on yours, this update is probably also breaking those in turn.

Status Details
  • continuous-integration/travis-ci/push The Travis CI build failed Details

Release Notes 1.8.0: Markdown Support

image

This release adds Markdown support, a new --insert-pragma flag, fixes a number of formatting issues, adds support for some new experimental operators, and improves our editor integration support.

Highlights

Markdown Support

Support markdown (#2943) by @ikatyang

You can now run Prettier on Markdown files! 🎉

The implementation is highly compliant with the CommonMark spec, and backed by the excellent remark-parse package.

Word Wrap

One of Prettier's core features is its ability to wrap code at a specified line length. This applies to Markdown too, which means you can maintain nice and clean 80-character-wide Markdown files without having to re-adjust line breaks manually when you add or delete words.

Input:

Voilà! In view, a humble vaudevillian veteran cast vicariously as both victim and villain by the vicissitudes of Fate. This visage, no mere veneer of vanity, is a vestige of the vox populi, now vacant, vanished. However, this valourous visitation of a bygone vexation stands vivified and has vowed to vanquish these venal and virulent vermin vanguarding vice and vouchsafing the violently vicious and voracious violation of volition! The only verdict is vengeance; a vendetta held as a votive, not in vain, for the value and veracity of such shall one day vindicate the vigilant and the virtuous. Verily, this vichyssoise of verbiage veers most verbose, so let me simply add that it's my very good honour to meet you and you may call me V.

Output:

Voilà! In view, a humble vaudevillian veteran cast vicariously as both victim
and villain by the vicissitudes of Fate. This visage, no mere veneer of vanity,
is a vestige of the vox populi, now vacant, vanished. However, this valourous
visitation of a bygone vexation stands vivified and has vowed to vanquish these
venal and virulent vermin vanguarding vice and vouchsafing the violently vicious
and voracious violation of volition! The only verdict is vengeance; a vendetta
held as a votive, not in vain, for the value and veracity of such shall one day
vindicate the vigilant and the virtuous. Verily, this vichyssoise of verbiage
veers most verbose, so let me simply add that it's my very good honour to meet
you and you may call me V.

Note for CJK users: If your markdown renderer does not support CJK line ending, you'll have to use plugin like markdown-it-perfect-newline-for-cjk, hexo-filter-fix-cjk-spacing, etc. to remove additional spaces.

// Source
一二三
四五六
七八九

// Rendered content with unsupported renderer
一二三 四五六 七八九

// Rendered content with supported renderer or via plugin
一二三四五六七八九

Code Formatting

Powered by Prettier's generic "multiparser", Prettier will format code blocks in Markdown! We use the language code provided with the code block to determine which language it is, and thus we can format any language that Prettier supports (including Markdown itself, if you're into that).

Input:

```js
reallyUgly    (
javascript
  )
```
.h1 {     color : red }
```</pre></div>
<p>Output:</p>
<div class="highlight highlight-source-lisp"><pre>```js
reallyUgly(javascript)<span class="pl-c"><span class="pl-c">;</span></span>
.h1 {
  color: red<span class="pl-c"><span class="pl-c">;</span></span>
}
```</pre></div>
<blockquote>
<p>Note: In some cases you may not want to format your code in Markdown, and just like in other languages, in Markdown you can use <code>&lt;!-- prettier-ignore --&gt;</code> before the code block to ignore it from formatting.</p>
</blockquote>
<p><strong>Lists</strong></p>
<p>When rearranging list items, after running Prettier all the numbers will be fixed!</p>
<p><a href="https://camo.githubusercontent.com/50f76500c503763c50019ad61ff531716ff7f3c9/687474703a2f2f672e7265636f726469742e636f2f4d4174616e5a4d5a526f2e676966" target="_blank"><img src="https://camo.githubusercontent.com/50f76500c503763c50019ad61ff531716ff7f3c9/687474703a2f2f672e7265636f726469742e636f2f4d4174616e5a4d5a526f2e676966" alt="Markdown Lists" style="max-width:100%;"></a></p>
<blockquote>
<p>Note: you can actually opt out of this by using <code>1.</code> for all list items if you want to optimize for cleaner diffs.</p>
</blockquote>
<p><strong>Tables</strong></p>
<p>Tables will also automatically be adjusted to fit their contents. This could be completely unmaintainable without an automated tool.</p>
<p><a href="https://camo.githubusercontent.com/7f33126347f155262873500e5068016d2e71a773/687474703a2f2f672e7265636f726469742e636f2f33356a61383836636b542e676966" target="_blank"><img src="https://camo.githubusercontent.com/7f33126347f155262873500e5068016d2e71a773/687474703a2f2f672e7265636f726469742e636f2f33356a61383836636b542e676966" alt="Markdown Tables" style="max-width:100%;"></a></p>
<p><strong>Markdown-in-JS</strong></p>
<p>By using either <code>md</code> or <code>markdown</code> tagged template literals, you can format markdown code inside JavaScript.</p>
<div class="highlight highlight-source-js"><pre><span class="pl-k">const</span> <span class="pl-c1">markdown</span> <span class="pl-k">=</span> md<span class="pl-s"><span class="pl-pds">`</span></span>
<span class="pl-s">  # heading</span>
<span class="pl-s"></span>
<span class="pl-s">  1. list item</span>
<span class="pl-s"><span class="pl-pds">`</span></span>;</pre></div>
<h2>CLI</h2>
<h3>Add option to insert <code>@format</code> to first docblock if absent (<a href="https://urls.greenkeeper.io/prettier/prettier/pull/2865" class="issue-link js-issue-link" data-error-text="Failed to load issue title" data-id="258974830" data-permission-text="Issue title is private" data-url="https://github.com/prettier/prettier/issues/2865">#2865</a>) by <a href="https://urls.greenkeeper.io/samouri" class="user-mention">@samouri</a></h3>
<p>In 1.7, we added an option called <code>--require-pragma</code> to require files contain an <code>/** @format */</code> pragma to be formatted. In order to add this pragma to a large set of files you can now use <a href="https://prettier.io/docs/en/cli.html#insert-pragma"><code>--insert-pragma</code></a> flag.</p>
<pre><code>prettier --write "folder/**/*.js" --insert-pragma
</code></pre>
<h3>Add <code>--loglevel</code> option (<a href="https://urls.greenkeeper.io/prettier/prettier/pull/2992" class="issue-link js-issue-link" data-error-text="Failed to load issue title" data-id="263707174" data-permission-text="Issue title is private" data-url="https://github.com/prettier/prettier/issues/2992">#2992</a>) by <a href="https://urls.greenkeeper.io/ikatyang" class="user-mention">@ikatyang</a></h3>
<p>This <a href="https://prettier.io/docs/en/cli.html#loglevel">nifty feature</a> allows you to opt in (or out) of Prettier's logging. We've also cleaned up the logging substantially since 1.7.</p>
<div class="highlight highlight-source-shell"><pre>$ prettier --loglevel=debug blarg
$ ./bin/prettier.js --loglevel=debug blarg
[debug] normalized argv: {<span class="pl-s"><span class="pl-pds">"</span>_<span class="pl-pds">"</span></span>:[<span class="pl-s"><span class="pl-pds">"</span>blarg<span class="pl-pds">"</span></span>],<span class="pl-s"><span class="pl-pds">"</span>bracket-spacing<span class="pl-pds">"</span></span>:false,<span class="pl-s"><span class="pl-pds">"</span>color<span class="pl-pds">"</span></span>:true,<span class="pl-s"><span class="pl-pds">"</span>debug-check<span class="pl-pds">"</span></span>:false,<span class="pl-s"><span class="pl-pds">"</span>debug-print-doc<span class="pl-pds">"</span></span>:false,<span class="pl-s"><span class="pl-pds">"</span>flow-parser<span class="pl-pds">"</span></span>:false,<span class="pl-s"><span class="pl-pds">"</span>insert-pragma<span class="pl-pds">"</span></span>:false,<span class="pl-s"><span class="pl-pds">"</span>jsx-bracket-same-line<span class="pl-pds">"</span></span>:false,<span class="pl-s"><span class="pl-pds">"</span>list-different<span class="pl-pds">"</span></span>:false,<span class="pl-s"><span class="pl-pds">"</span>require-pragma<span class="pl-pds">"</span></span>:false,<span class="pl-s"><span class="pl-pds">"</span>semi<span class="pl-pds">"</span></span>:false,<span class="pl-s"><span class="pl-pds">"</span>single-quote<span class="pl-pds">"</span></span>:false,<span class="pl-s"><span class="pl-pds">"</span>stdin<span class="pl-pds">"</span></span>:false,<span class="pl-s"><span class="pl-pds">"</span>use-tabs<span class="pl-pds">"</span></span>:false,<span class="pl-s"><span class="pl-pds">"</span>version<span class="pl-pds">"</span></span>:false,<span class="pl-s"><span class="pl-pds">"</span>with-node-modules<span class="pl-pds">"</span></span>:false,<span class="pl-s"><span class="pl-pds">"</span>write<span class="pl-pds">"</span></span>:false,<span class="pl-s"><span class="pl-pds">"</span>loglevel<span class="pl-pds">"</span></span>:<span class="pl-s"><span class="pl-pds">"</span>debug<span class="pl-pds">"</span></span>,<span class="pl-s"><span class="pl-pds">"</span>ignore-path<span class="pl-pds">"</span></span>:<span class="pl-s"><span class="pl-pds">"</span>.prettierignore<span class="pl-pds">"</span></span>,<span class="pl-s"><span class="pl-pds">"</span>config-precedence<span class="pl-pds">"</span></span>:<span class="pl-s"><span class="pl-pds">"</span>cli-override<span class="pl-pds">"</span></span>}
[error] No matching files. Patterns tried: blarg <span class="pl-k">!</span><span class="pl-k">**</span>/node_modules/<span class="pl-k">**</span> <span class="pl-k">!</span>./node_modules/<span class="pl-k">**</span>
</pre></div>
<h2>JavaScript</h2>
<h3>Fix indentation for JSDoc comments (<a href="https://urls.greenkeeper.io/prettier/prettier/pull/2470" class="issue-link js-issue-link" data-error-text="Failed to load issue title" data-id="242554023" data-permission-text="Issue title is private" data-url="https://github.com/prettier/prettier/issues/2470">#2470</a>) by <a href="https://urls.greenkeeper.io/maxdeviant" class="user-mention">@maxdeviant</a></h3>
<p>This has been a long-time known issue with Prettier. When formatting code that results in a change of indentation level, the JSDoc comments would end up being out of alignment. We're happy to report this is now fixed!</p>
<div class="highlight highlight-source-js"><pre><span class="pl-c"><span class="pl-c">//</span> Before</span>
<span class="pl-k">function</span> <span class="pl-en">theFunction2</span>(<span class="pl-smi">action$</span>, <span class="pl-smi">store</span>) {
  <span class="pl-c"><span class="pl-c">/*</span></span>
<span class="pl-c">     * comments</span>
<span class="pl-c">     <span class="pl-c">*/</span></span>
  <span class="pl-k">return</span> <span class="pl-c1">true</span>;
}

<span class="pl-c"><span class="pl-c">//</span> After</span>
<span class="pl-k">function</span> <span class="pl-en">theFunction2</span>(<span class="pl-smi">action$</span>, <span class="pl-smi">store</span>) {
  <span class="pl-c"><span class="pl-c">/*</span></span>
<span class="pl-c">   * comments</span>
<span class="pl-c">   <span class="pl-c">*/</span></span>
  <span class="pl-k">return</span> <span class="pl-c1">true</span>;
}</pre></div>
<h3>Print pipeline and nullish-coalescing operators (<a href="https://urls.greenkeeper.io/prettier/prettier/pull/3036" class="issue-link js-issue-link" data-error-text="Failed to load issue title" data-id="265544605" data-permission-text="Issue title is private" data-url="https://github.com/prettier/prettier/issues/3036">#3036</a>) by <a href="https://urls.greenkeeper.io/azz" class="user-mention">@azz</a></h3>
<p>We've added support for two new proposed operators to Prettier: the <em>pipeline operator</em> and the <em>nullish coalescing operator</em>.</p>
<p>The <a href="https://urls.greenkeeper.io/tc39/proposal-pipeline-operator/">pipeline operator</a> is currently a stage one proposal.</p>
<blockquote>
<p>This proposal introduces a new operator |&gt; similar to F#, OCaml, Elixir, Elm, Julia, Hack, and LiveScript, as well as UNIX pipes. It's a backwards-compatible way of streamlining chained function calls in a readable, functional manner, and provides a practical alternative to extending built-in prototypes.</p>
</blockquote>
<div class="highlight highlight-source-js"><pre><span class="pl-c"><span class="pl-c">//</span> Before</span>
<span class="pl-k">let</span> result <span class="pl-k">=</span> <span class="pl-en">exclaim</span>(<span class="pl-en">capitalize</span>(<span class="pl-en">doubleSay</span>(<span class="pl-s"><span class="pl-pds">"</span>hello<span class="pl-pds">"</span></span>)));

<span class="pl-c"><span class="pl-c">//</span> After</span>
<span class="pl-k">let</span> result <span class="pl-k">=</span> <span class="pl-s"><span class="pl-pds">"</span>hello<span class="pl-pds">"</span></span>
  <span class="pl-k">|</span><span class="pl-k">&gt;</span> doubleSay
  <span class="pl-k">|</span><span class="pl-k">&gt;</span> capitalize
  <span class="pl-k">|</span><span class="pl-k">&gt;</span> exclaim;</pre></div>
<p>The <a href="https://urls.greenkeeper.io/tc39-transfer/proposal-nullish-coalescing">nullish coalescing operator</a> is another stage one proposal.</p>
<blockquote>
<p>When performing optional property access in a nested structure in conjunction with the optional chaining operator, it is often desired to provide a default value if the result of that property access is null or undefined.</p>
</blockquote>
<p>This operator is similar to <code>||</code> except it only evaluates the right-hand-side if the left is <code>undefined</code> or <code>null</code>, not <code>""</code>, <code>0</code>, <code>NaN</code>, etc.</p>
<div class="highlight highlight-source-js"><pre><span class="pl-k">const</span> <span class="pl-c1">foo</span> <span class="pl-k">=</span> <span class="pl-smi">object</span>.<span class="pl-smi">foo</span> <span class="pl-k">??</span> <span class="pl-s"><span class="pl-pds">"</span>default<span class="pl-pds">"</span></span>;</pre></div>
<h3>Improved template literal expresions line breaks (<a href="https://urls.greenkeeper.io/prettier/prettier/pull/3124" class="issue-link js-issue-link" data-error-text="Failed to load issue title" data-id="269808048" data-permission-text="Issue title is private" data-url="https://github.com/prettier/prettier/issues/3124">#3124</a>) by <a href="https://urls.greenkeeper.io/duailibe" class="user-mention">@duailibe</a></h3>
<p>This was another known issue with Prettier, when printing a template literal string with expressions inside that went over the print width, it would wrap the code in weird places inside the expressions. Now, if Prettier needs to insert a line break, it should happen right between <code>${</code> and <code>}</code>.</p>
<div class="highlight highlight-source-js-jsx"><pre><span class="pl-c"><span class="pl-c">//</span> Before</span>
<span class="pl-k">const</span> <span class="pl-smi">description</span><span class="pl-k"> =</span><span class="pl-s"> <span class="pl-s">`</span><span class="pl-s">The value of the <span class="pl-e">${<span class="pl-smi">cssName</span>}</span> css of the <span class="pl-e">${<span class="pl-c1">this</span></span></span></span>
<span class="pl-s"><span class="pl-s"><span class="pl-e">  <span class="pl-k">.</span><span class="pl-smi">_name</span>}</span> element</span><span class="pl-s">`</span></span>;

<span class="pl-k">const</span> <span class="pl-smi">foo</span><span class="pl-k"> =</span><span class="pl-s"> <span class="pl-s">`</span><span class="pl-s">mdl-textfield mdl-js-textfield <span class="pl-e">${<span class="pl-smi">className</span>}</span> <span class="pl-e">${<span class="pl-smi">content</span><span class="pl-k">.</span><span class="pl-smi">length</span><span class="pl-k"> &gt;</span> <span class="pl-c1">0</span></span></span></span>
<span class="pl-s"><span class="pl-s"><span class="pl-e">  <span class="pl-k">?</span> <span class="pl-s"><span class="pl-pds">"</span>is-dirty<span class="pl-pds">"</span></span></span></span></span>
<span class="pl-s"><span class="pl-s"><span class="pl-e">  <span class="pl-k">:</span> <span class="pl-s"><span class="pl-pds">"</span><span class="pl-pds">"</span></span>}</span> combo-box__input</span><span class="pl-s">`</span></span>;

<span class="pl-c"><span class="pl-c">//</span> After</span>
<span class="pl-k">const</span> <span class="pl-smi">description</span><span class="pl-k"> =</span><span class="pl-s"> <span class="pl-s">`</span><span class="pl-s">The value of the \${cssName} css of the \${</span></span>
<span class="pl-s"><span class="pl-s">  this._name</span></span>
<span class="pl-s"><span class="pl-s">} element</span><span class="pl-s">`</span></span>;

<span class="pl-k">const</span> <span class="pl-smi">foo</span><span class="pl-k"> =</span><span class="pl-s"> <span class="pl-s">`</span><span class="pl-s">mdl-textfield mdl-js-textfield <span class="pl-e">${<span class="pl-smi">className</span>}</span> <span class="pl-e">${</span></span></span>
<span class="pl-s"><span class="pl-s"><span class="pl-e"><span class="pl-smi">  content</span><span class="pl-k">.</span><span class="pl-smi">length</span><span class="pl-k"> &gt;</span> <span class="pl-c1">0</span> <span class="pl-k">?</span> <span class="pl-s"><span class="pl-pds">'</span>is-dirty<span class="pl-pds">'</span></span> <span class="pl-k">:</span> <span class="pl-s"><span class="pl-pds">'</span><span class="pl-pds">'</span></span></span></span></span>
<span class="pl-s"><span class="pl-s"><span class="pl-e">}</span> combo-box__input</span><span class="pl-s">`</span></span></pre></div>
<h2>JSX</h2>
<h3>Don't inline trailing <code>}</code> for arrow functions attributes (<a href="https://urls.greenkeeper.io/prettier/prettier/pull/3110" class="issue-link js-issue-link" data-error-text="Failed to load issue title" data-id="268739661" data-permission-text="Issue title is private" data-url="https://github.com/prettier/prettier/issues/3110">#3110</a>) by <a href="https://urls.greenkeeper.io/duailibe" class="user-mention">@duailibe</a></h3>
<p>In order to align closer to the <a href="https://urls.greenkeeper.io/airbnb/javascript/">Airbnb style guide</a>, and since it was never intentionally printed this way, we've moved the <code>}</code> from to the next line in JSX. This is more diff friendly, and makes it easier to move code around by shifting lines in your editor.</p>
<div class="highlight highlight-source-js-jsx"><pre><span class="pl-c"><span class="pl-c">//</span> Before</span>
&lt;<span class="pl-ent"><span class="pl-c1">BookingIntroPanel</span></span>
  <span class="pl-e">logClick</span><span class="pl-k">=</span><span class="pl-pse">{</span><span class="pl-s1"><span class="pl-smi">data</span> <span class="pl-k">=&gt;</span></span>
<span class="pl-s1">    <span class="pl-en">doLogClick</span>(<span class="pl-s"><span class="pl-pds">"</span>long_name_long_name_long_name<span class="pl-pds">"</span></span>, <span class="pl-s"><span class="pl-pds">"</span>long_name_long_name_long_name<span class="pl-pds">"</span></span>,<span class="pl-smi"> data</span>)</span><span class="pl-pse">}</span>
/&gt;;

<span class="pl-c"><span class="pl-c">//</span> After</span>
&lt;<span class="pl-ent"><span class="pl-c1">BookingIntroPanel</span></span>
  <span class="pl-e">logClick</span><span class="pl-k">=</span><span class="pl-pse">{</span><span class="pl-s1"><span class="pl-smi">data</span> <span class="pl-k">=&gt;</span></span>
<span class="pl-s1">    <span class="pl-en">doLogClick</span>(<span class="pl-s"><span class="pl-pds">"</span>long_name_long_name_long_name<span class="pl-pds">"</span></span>, <span class="pl-s"><span class="pl-pds">"</span>long_name_long_name_long_name<span class="pl-pds">"</span></span>,<span class="pl-smi"> data</span>)</span>
<span class="pl-s1">  </span><span class="pl-pse">}</span>
/&gt;;</pre></div>
<h1>Other Changes</h1>
<h2>JavaScript</h2>
<h3>Make the factory detection handle multiple elements (<a href="https://urls.greenkeeper.io/prettier/prettier/pull/3112" class="issue-link js-issue-link" data-error-text="Failed to load issue title" data-id="268967545" data-permission-text="Issue title is private" data-url="https://github.com/prettier/prettier/issues/3112">#3112</a>) by <a href="https://urls.greenkeeper.io/vjeux" class="user-mention">@vjeux</a></h3>
<p>There was a bug in the heuristic that Prettier uses to determine whether an expression is a factory or not. It now works correctly with longer member expressions.</p>
<div class="highlight highlight-source-js"><pre><span class="pl-c"><span class="pl-c">//</span> Before</span>
<span class="pl-c1">window</span>.<span class="pl-smi">FooClient</span>
  .<span class="pl-en">setVars</span>({
    locale<span class="pl-k">:</span> <span class="pl-en">getFooLocale</span>({ page }),
    authorizationToken<span class="pl-k">:</span> <span class="pl-smi">data</span>.<span class="pl-smi">token</span>
  })
  .<span class="pl-en">initVerify</span>(<span class="pl-s"><span class="pl-pds">"</span>foo_container<span class="pl-pds">"</span></span>);

<span class="pl-c"><span class="pl-c">//</span> After</span>
<span class="pl-c1">window</span>.<span class="pl-smi">FooClient</span>.<span class="pl-en">setVars</span>({
  locale<span class="pl-k">:</span> <span class="pl-en">getFooLocale</span>({ page }),
  authorizationToken<span class="pl-k">:</span> <span class="pl-smi">data</span>.<span class="pl-smi">token</span>
}).<span class="pl-en">initVerify</span>(<span class="pl-s"><span class="pl-pds">"</span>foo_container<span class="pl-pds">"</span></span>);</pre></div>
<h3>Handle comments between function name and open paren (<a href="https://urls.greenkeeper.io/prettier/prettier/pull/2979" class="issue-link js-issue-link" data-error-text="Failed to load issue title" data-id="263070152" data-permission-text="Issue title is private" data-url="https://github.com/prettier/prettier/issues/2979">#2979</a>) by <a href="https://urls.greenkeeper.io/azz" class="user-mention">@azz</a></h3>
<p>Printing comments in the right place is an endless challenge <g-emoji alias="wink" fallback-src="https://assets-cdn.github.com/images/icons/emoji/unicode/1f609.png" ios-version="6.0">😉</g-emoji>. This fix ensures that comments next to function names are re-printed correctly.</p>
<div class="highlight highlight-source-js"><pre><span class="pl-c"><span class="pl-c">//</span> Before</span>
<span class="pl-k">function</span> <span class="pl-en">f</span>(<span class="pl-c"><span class="pl-c">/*</span> comment<span class="pl-c">*/</span></span> <span class="pl-smi">promise</span>) {}

<span class="pl-c"><span class="pl-c">//</span> After </span>
<span class="pl-k">function</span> f <span class="pl-c"><span class="pl-c">/*</span> comment<span class="pl-c">*/</span></span>(<span class="pl-smi">promise</span>) {}</pre></div>
<h3>Support sequential CallExpressions in member chains (<a href="https://urls.greenkeeper.io/prettier/prettier/pull/2990" class="issue-link js-issue-link" data-error-text="Failed to load issue title" data-id="263677479" data-permission-text="Issue title is private" data-url="https://github.com/prettier/prettier/issues/2990">#2990</a>) by <a href="https://urls.greenkeeper.io/chrisvoll" class="user-mention">@chrisvoll</a></h3>
<p>Member chains are one of the most complex parts of Prettier. This PR fixes an issue where repeated calls lead to the next method not being pushed to the next line.</p>
<div class="highlight highlight-source-js"><pre><span class="pl-c"><span class="pl-c">//</span> Before</span>
wrapper
  .<span class="pl-c1">find</span>(<span class="pl-s"><span class="pl-pds">"</span>SomewhatLongNodeName<span class="pl-pds">"</span></span>)
  .<span class="pl-en">prop</span>(<span class="pl-s"><span class="pl-pds">"</span>longPropFunctionName<span class="pl-pds">"</span></span>)().<span class="pl-en">then</span>(<span class="pl-k">function</span>() {
  <span class="pl-en">doSomething</span>();
});

<span class="pl-c"><span class="pl-c">//</span> After</span>
wrapper
  .<span class="pl-c1">find</span>(<span class="pl-s"><span class="pl-pds">"</span>SomewhatLongNodeName<span class="pl-pds">"</span></span>)
  .<span class="pl-en">prop</span>(<span class="pl-s"><span class="pl-pds">"</span>longPropFunctionName<span class="pl-pds">"</span></span>)()
  .<span class="pl-en">then</span>(<span class="pl-k">function</span>() {
    <span class="pl-en">doSomething</span>();
  });</pre></div>
<h3>Account for empty lines in long member call chain (<a href="https://urls.greenkeeper.io/prettier/prettier/pull/3035" class="issue-link js-issue-link" data-error-text="Failed to load issue title" data-id="265515302" data-permission-text="Issue title is private" data-url="https://github.com/prettier/prettier/issues/3035">#3035</a>) by <a href="https://urls.greenkeeper.io/jackyho112" class="user-mention">@jackyho112</a></h3>
<p>Previously, Prettier would delete all newlines within a member chain. Now we keep up to one if it's in the source. This is nice for fluent APIs that you want to break up over multiple lines.</p>
<div class="highlight highlight-source-js"><pre>angular
  .<span class="pl-en">module</span>(<span class="pl-s"><span class="pl-pds">"</span>AngularAppModule<span class="pl-pds">"</span></span>)

  <span class="pl-c"><span class="pl-c">//</span> Constants.</span>
  .<span class="pl-en">constant</span>(<span class="pl-s"><span class="pl-pds">"</span>API_URL<span class="pl-pds">"</span></span>, <span class="pl-s"><span class="pl-pds">"</span>http://localhost:8080/api<span class="pl-pds">"</span></span>)

  <span class="pl-c"><span class="pl-c">//</span> App configuration.</span>
  .<span class="pl-en">config</span>(appConfig)
  .<span class="pl-en">run</span>(appRun);</pre></div>
<h3>Fix issue where first argument is left behind when line breaks (<a href="https://urls.greenkeeper.io/prettier/prettier/pull/3079" class="issue-link js-issue-link" data-error-text="Failed to load issue title" data-id="267371127" data-permission-text="Issue title is private" data-url="https://github.com/prettier/prettier/issues/3079">#3079</a>) by <a href="https://urls.greenkeeper.io/mutdmour" class="user-mention">@mutdmour</a></h3>
<p>This addresses an issue where due to our special object inline behaviour, the indentation missing from the function call.</p>
<div class="highlight highlight-source-js"><pre><span class="pl-c"><span class="pl-c">//</span> Before</span>
<span class="pl-smi">db</span>.<span class="pl-en">collection</span>(<span class="pl-s"><span class="pl-pds">"</span>indexOptionDefault<span class="pl-pds">"</span></span>).<span class="pl-en">createIndex</span>({ a<span class="pl-k">:</span> <span class="pl-c1">1</span> },
{
  indexOptionDefaults<span class="pl-k">:</span> <span class="pl-c1">true</span>
},
<span class="pl-k">function</span>(<span class="pl-smi">err</span>) {
  <span class="pl-c"><span class="pl-c">//</span> code</span>
});

<span class="pl-c"><span class="pl-c">//</span> After</span>
<span class="pl-smi">db</span>.<span class="pl-en">collection</span>(<span class="pl-s"><span class="pl-pds">"</span>indexOptionDefault<span class="pl-pds">"</span></span>).<span class="pl-en">createIndex</span>(
  { a<span class="pl-k">:</span> <span class="pl-c1">1</span> },
  {
    indexOptionDefaults<span class="pl-k">:</span> <span class="pl-c1">true</span>
  },
  <span class="pl-k">function</span>(<span class="pl-smi">err</span>) {
    <span class="pl-c"><span class="pl-c">//</span> code</span>
  }
);</pre></div>
<h3>Break parens for binaries in member expression (<a href="https://urls.greenkeeper.io/prettier/prettier/pull/2958" class="issue-link js-issue-link" data-error-text="Failed to load issue title" data-id="262164203" data-permission-text="Issue title is private" data-url="https://github.com/prettier/prettier/issues/2958">#2958</a>) by <a href="https://urls.greenkeeper.io/duailibe" class="user-mention">@duailibe</a></h3>
<p>Similarly, there was another edge case where indentation was missing from logical expressions. This is fixed, too.</p>
<div class="highlight highlight-source-js"><pre><span class="pl-c"><span class="pl-c">//</span> Before</span>
<span class="pl-k">const</span> <span class="pl-c1">someLongVariable</span> <span class="pl-k">=</span> (<span class="pl-en">idx</span>(
  <span class="pl-c1">this</span>.<span class="pl-smi">props</span>,
  <span class="pl-smi">props</span> <span class="pl-k">=&gt;</span> <span class="pl-smi">props</span>.<span class="pl-smi">someLongPropertyName</span>
) <span class="pl-k">||</span> []
).<span class="pl-en">map</span>(<span class="pl-smi">edge</span> <span class="pl-k">=&gt;</span> <span class="pl-smi">edge</span>.<span class="pl-smi">node</span>);

<span class="pl-c"><span class="pl-c">//</span> After</span>
<span class="pl-k">const</span> <span class="pl-c1">someLongVariable</span> <span class="pl-k">=</span> (
  <span class="pl-en">idx</span>(<span class="pl-c1">this</span>.<span class="pl-smi">props</span>, <span class="pl-smi">props</span> <span class="pl-k">=&gt;</span> <span class="pl-smi">props</span>.<span class="pl-smi">someLongPropertyName</span>) <span class="pl-k">||</span> []
).<span class="pl-en">map</span>(<span class="pl-smi">edge</span> <span class="pl-k">=&gt;</span> <span class="pl-smi">edge</span>.<span class="pl-smi">node</span>);</pre></div>
<h3>Prevent breaking MemberExpression inside NewExpression (<a href="https://urls.greenkeeper.io/prettier/prettier/pull/3075" class="issue-link js-issue-link" data-error-text="Failed to load issue title" data-id="267232001" data-permission-text="Issue title is private" data-url="https://github.com/prettier/prettier/issues/3075">#3075</a>) by <a href="https://urls.greenkeeper.io/duailibe" class="user-mention">@duailibe</a></h3>
<p>There are so many ways to break a line. Some of them look much worse than others. Breaking between in this case looked really weird, so it has been fixed!</p>
<div class="highlight highlight-source-js"><pre><span class="pl-c"><span class="pl-c">//</span> Before</span>
<span class="pl-k">function</span> <span class="pl-en">functionName</span>() {
  <span class="pl-k">if</span> (<span class="pl-c1">true</span>) {
    <span class="pl-c1">this</span>.<span class="pl-smi">_aVeryLongVariableNameToForceLineBreak</span> <span class="pl-k">=</span> <span class="pl-k">new</span> <span class="pl-en">this</span>
      .<span class="pl-en">Promise</span>((<span class="pl-smi">resolve</span>, <span class="pl-smi">reject</span>) <span class="pl-k">=&gt;</span> {
        <span class="pl-c"><span class="pl-c">//</span> do something</span>
      });
  }
}

<span class="pl-c"><span class="pl-c">//</span> After</span>
<span class="pl-k">function</span> <span class="pl-en">functionName</span>() {
  <span class="pl-k">if</span> (<span class="pl-c1">true</span>) {
    <span class="pl-c1">this</span>.<span class="pl-smi">_aVeryLongVariableNameToForceLineBreak</span> <span class="pl-k">=</span> <span class="pl-k">new</span> <span class="pl-en">this.Promise</span>(
      (<span class="pl-smi">resolve</span>, <span class="pl-smi">reject</span>) <span class="pl-k">=&gt;</span> {
        <span class="pl-c"><span class="pl-c">//</span> do something</span>
      }
    );
  }
}</pre></div>
<h3>Fix array acessors in method chains (<a href="https://urls.greenkeeper.io/prettier/prettier/pull/3137" class="issue-link js-issue-link" data-error-text="Failed to load issue title" data-id="270637812" data-permission-text="Issue title is private" data-url="https://github.com/prettier/prettier/issues/3137">#3137</a>) by <a href="https://urls.greenkeeper.io/duailibe" class="user-mention">@duailibe</a></h3>
<p>In a method chain we split lines by grouping elements together and accessing an array should be printed in the end of a group instead of the beginning.</p>
<div class="highlight highlight-source-js"><pre><span class="pl-c"><span class="pl-c">//</span> Before</span>
<span class="pl-en">find</span>(<span class="pl-s"><span class="pl-pds">'</span>.org-lclp-edit-copy-url-banner__link<span class="pl-pds">'</span></span>)
  [<span class="pl-c1">0</span>].<span class="pl-c1">getAttribute</span>(<span class="pl-s"><span class="pl-pds">'</span>href<span class="pl-pds">'</span></span>)
  .<span class="pl-c1">indexOf</span>(<span class="pl-c1">this</span>.<span class="pl-smi">landingPageLink</span>)

<span class="pl-c"><span class="pl-c">//</span> After</span>
<span class="pl-en">find</span>(<span class="pl-s"><span class="pl-pds">'</span>.org-lclp-edit-copy-url-banner__link<span class="pl-pds">'</span></span>)[<span class="pl-c1">0</span>]
  .<span class="pl-c1">getAttribute</span>(<span class="pl-s"><span class="pl-pds">'</span>href<span class="pl-pds">'</span></span>)
  .<span class="pl-c1">indexOf</span>(<span class="pl-c1">this</span>.<span class="pl-smi">landingPageLink</span>)</pre></div>
<h2>Flow and TypeScript</h2>
<h3>Fix indentation of intersection object types (<a href="https://urls.greenkeeper.io/prettier/prettier/pull/3074" class="issue-link js-issue-link" data-error-text="Failed to load issue title" data-id="267225804" data-permission-text="Issue title is private" data-url="https://github.com/prettier/prettier/issues/3074">#3074</a>) by <a href="https://urls.greenkeeper.io/duailibe" class="user-mention">@duailibe</a></h3>
<p>This was a minor alignment bug in intersection types, and has now been fixed.</p>
<div class="highlight highlight-source-js"><pre><span class="pl-c"><span class="pl-c">//</span> Before</span>
type intersectionTest <span class="pl-k">=</span> {
  propA<span class="pl-k">:</span> <span class="pl-c1">X</span>
} <span class="pl-k">&amp;</span> {
  propB<span class="pl-k">:</span> <span class="pl-c1">X</span>
} <span class="pl-k">&amp;</span> {
    propC<span class="pl-k">:</span> <span class="pl-c1">X</span>
  } <span class="pl-k">&amp;</span> {
    propD<span class="pl-k">:</span> <span class="pl-c1">X</span>
  };

<span class="pl-c"><span class="pl-c">//</span> After</span>
type Props <span class="pl-k">=</span> {
  propA<span class="pl-k">:</span> <span class="pl-c1">X</span>
} <span class="pl-k">&amp;</span> {
  propB<span class="pl-k">:</span> <span class="pl-c1">X</span>
} <span class="pl-k">&amp;</span> {
  propC<span class="pl-k">:</span> <span class="pl-c1">X</span>
} <span class="pl-k">&amp;</span> {
  propD<span class="pl-k">:</span> <span class="pl-c1">X</span>
};</pre></div>
<h3>Keep parens around TSAsExpression in ConditionalExpression (<a href="https://urls.greenkeeper.io/prettier/prettier/pull/3053" class="issue-link js-issue-link" data-error-text="Failed to load issue title" data-id="266402555" data-permission-text="Issue title is private" data-url="https://github.com/prettier/prettier/issues/3053">#3053</a>) by <a href="https://urls.greenkeeper.io/azz" class="user-mention">@azz</a></h3>
<p>We missed a case where we need to keep the parenthesis with TypeScript's <code>as</code> assertions. This is now fixed.</p>
<div class="highlight highlight-source-ts"><pre><span class="pl-c"><span class="pl-c">//</span> Before</span>
<span class="pl-c"></span><span class="pl-smi">aValue</span> <span class="pl-k">as</span> <span class="pl-c1">boolean</span> ? <span class="pl-c1">0</span> : <span class="pl-k">-</span><span class="pl-c1">1</span>;

<span class="pl-c"><span class="pl-c">//</span> After</span>
<span class="pl-c"></span>(<span class="pl-smi">aValue</span> <span class="pl-k">as</span> <span class="pl-c1">boolean</span>) <span class="pl-k">?</span> <span class="pl-c1">0</span> <span class="pl-k">:</span> <span class="pl-k">-</span><span class="pl-c1">1</span>;</pre></div>
<h2>JSX</h2>
<h3>Collapse multiple JSX whitespaces (<a href="https://urls.greenkeeper.io/prettier/prettier/pull/2973" class="issue-link js-issue-link" data-error-text="Failed to load issue title" data-id="262564212" data-permission-text="Issue title is private" data-url="https://github.com/prettier/prettier/issues/2973">#2973</a>) by <a href="https://urls.greenkeeper.io/karl" class="user-mention">@karl</a></h3>
<p>This fixes up the issue where JSX formatting occasionally needed to be run twice to become stable. This occurred when you had multiple JSX whitespace elements or JSX whitespace followed by a space.</p>
<div class="highlight highlight-source-js-jsx"><pre><span class="pl-c"><span class="pl-c">//</span> Before</span>
&lt;<span class="pl-ent">div</span>&gt;
    <span class="pl-pse">{</span><span class="pl-s1"><span class="pl-s"><span class="pl-pds">"</span> <span class="pl-pds">"</span></span></span><span class="pl-pse">}</span> &lt;<span class="pl-ent"><span class="pl-c1">Badge</span></span> <span class="pl-e">src</span><span class="pl-k">=</span><span class="pl-pse">{</span><span class="pl-s1"><span class="pl-smi">notificationIconPng</span></span><span class="pl-pse">}</span> /&gt;
&lt;/<span class="pl-ent">div</span>&gt;;

<span class="pl-c"><span class="pl-c">//</span> After</span>
&lt;<span class="pl-ent">div</span>&gt;
  <span class="pl-pse">{</span><span class="pl-s1"><span class="pl-s"><span class="pl-pds">"</span> <span class="pl-pds">"</span></span></span><span class="pl-pse">}</span>
  &lt;<span class="pl-ent"><span class="pl-c1">Badge</span></span> <span class="pl-e">src</span><span class="pl-k">=</span><span class="pl-pse">{</span><span class="pl-s1"><span class="pl-smi">notificationIconPng</span></span><span class="pl-pse">}</span> /&gt;
&lt;/<span class="pl-ent">div</span>&gt;</pre></div>
<h3>Don't print JSX bracket on same line when it has trailing comments (<a href="https://urls.greenkeeper.io/prettier/prettier/pull/3088" class="issue-link js-issue-link" data-error-text="Failed to load issue title" data-id="267549517" data-permission-text="Issue title is private" data-url="https://github.com/prettier/prettier/issues/3088">#3088</a>) by <a href="https://urls.greenkeeper.io/azz" class="user-mention">@azz</a></h3>
<p>This was an issue with the <code>--jsx-bracket-same-line</code> option. Turns out you can't <em>always</em> put the bracket on the same line...</p>
<div class="highlight highlight-source-js-jsx"><pre><span class="pl-c"><span class="pl-c">//</span> Input</span>
&lt;<span class="pl-ent">div</span>
<span class="pl-c">  <span class="pl-c">//</span> comment</span>
&gt;
  <span class="pl-pse">{</span><span class="pl-s1"><span class="pl-smi">foo</span></span><span class="pl-pse">}</span>
&lt;/<span class="pl-ent">div</span>&gt;

<span class="pl-c"><span class="pl-c">//</span> Before</span>
&lt;<span class="pl-ent">div</span>&gt;
// comment
  <span class="pl-pse">{</span><span class="pl-s1"><span class="pl-smi">foo</span></span><span class="pl-pse">}</span>
&lt;/<span class="pl-ent">div</span>&gt;;

<span class="pl-c"><span class="pl-c">//</span> After</span>
&lt;<span class="pl-ent">div</span>
<span class="pl-c"><span class="pl-c">//</span> comment</span>
&gt;
  <span class="pl-pse">{</span><span class="pl-s1"><span class="pl-smi">foo</span></span><span class="pl-pse">}</span>
&lt;/<span class="pl-ent">div</span>&gt;;</pre></div>
<h2>CSS</h2>
<h3>Preserve line breaks in grid declarations (<a href="https://urls.greenkeeper.io/prettier/prettier/pull/3133" class="issue-link js-issue-link" data-error-text="Failed to load issue title" data-id="270384528" data-permission-text="Issue title is private" data-url="https://github.com/prettier/prettier/issues/3133">#3133</a>) by <a href="https://urls.greenkeeper.io/duailibe" class="user-mention">@duailibe</a></h3>
<p>Prettier will now preserve line breaks included in the source code when formatting the <code>grid</code> and <code>grid-template-*</code> rules, since those are important to keep in separate lines, but still applies the formatting like other rules (e.g., numbers and quotes).</p>
<div class="highlight highlight-source-css"><pre><span class="pl-c"><span class="pl-c">/*</span> Original Input <span class="pl-c">*/</span></span>
<span class="pl-ent">div</span> {
  <span class="pl-c1"><span class="pl-c1">grid</span></span>:
    [wide-start] <span class="pl-s"><span class="pl-pds">'</span>header header header<span class="pl-pds">'</span></span> <span class="pl-c1">200.000<span class="pl-k">px</span></span>
    [wide-end] <span class="pl-s"><span class="pl-pds">"</span>footer footer footer<span class="pl-pds">"</span></span> <span class="pl-c1">.50<span class="pl-k">fr</span></span>
    / <span class="pl-c1">auto</span> <span class="pl-c1">50.000<span class="pl-k">px</span></span> <span class="pl-c1">auto</span>;
}

<span class="pl-c"><span class="pl-c">/*</span> Before <span class="pl-c">*/</span></span>
<span class="pl-ent">div</span> {
  <span class="pl-c1"><span class="pl-c1">grid</span></span>: [wide-start] <span class="pl-s"><span class="pl-pds">"</span>header header header<span class="pl-pds">"</span></span> <span class="pl-c1">200<span class="pl-k">px</span></span> [wide-end]
    <span class="pl-s"><span class="pl-pds">"</span>footer footer footer<span class="pl-pds">"</span></span> <span class="pl-c1">0.5<span class="pl-k">fr</span></span> / <span class="pl-c1">auto</span> <span class="pl-c1">50<span class="pl-k">px</span></span> <span class="pl-c1">auto</span>;
}

<span class="pl-c"><span class="pl-c">/*</span> After <span class="pl-c">*/</span></span>
<span class="pl-ent">div</span> {
  <span class="pl-c1"><span class="pl-c1">grid</span></span>:
    [wide-start] <span class="pl-s"><span class="pl-pds">"</span>header header header<span class="pl-pds">"</span></span> <span class="pl-c1">200<span class="pl-k">px</span></span>
    [wide-end] <span class="pl-s"><span class="pl-pds">"</span>footer footer footer<span class="pl-pds">"</span></span> <span class="pl-c1">0.5<span class="pl-k">fr</span></span>
    / <span class="pl-c1">auto</span> <span class="pl-c1">50<span class="pl-k">px</span></span> <span class="pl-c1">auto</span>;
}</pre></div>
<h2>SCSS</h2>
<h3>Format SCSS maps like CSS rules (<a href="https://urls.greenkeeper.io/prettier/prettier/pull/3070" class="issue-link js-issue-link" data-error-text="Failed to load issue title" data-id="267054763" data-permission-text="Issue title is private" data-url="https://github.com/prettier/prettier/issues/3070">#3070</a>) by <a href="https://urls.greenkeeper.io/asmockler" class="user-mention">@asmockler</a></h3>
<p>Turns out SCSS maps are much prettier when printed over multiple lines.</p>
<div class="highlight highlight-source-scss"><pre><span class="pl-c">// Before</span>
<span class="pl-smi">$map</span>: (color: <span class="pl-c1">#111111</span>, <span class="pl-c1">text</span><span class="pl-c1">-</span>shadow:<span class="pl-c1"> 1</span><span class="pl-k">px</span><span class="pl-c1"> 1</span><span class="pl-k">px</span><span class="pl-c1"> 0</span> <span class="pl-bu">salmon</span>)

// After
<span class="pl-smi">$map</span>: (
  color: <span class="pl-c1">#111111</span>,
  <span class="pl-c1">text</span><span class="pl-c1">-</span>shadow:<span class="pl-c1"> 1</span><span class="pl-k">px</span><span class="pl-c1"> 1</span><span class="pl-k">px</span><span class="pl-c1"> 0</span> <span class="pl-bu">salmon</span>
);</pre></div>
<h2>CSS-in-JS</h2>
<h3>Fix formatting styled(Foo).attrs(...)`` (<a href="https://urls.greenkeeper.io/prettier/prettier/pull/3073" class="issue-link js-issue-link" data-error-text="Failed to load issue title" data-id="267192603" data-permission-text="Issue title is private" data-url="https://github.com/prettier/prettier/issues/3073">#3073</a>) by <a href="https://urls.greenkeeper.io/existentialism" class="user-mention">@existentialism</a></h3>
<p>Prettier will now format the CSS in styled-components code that looks like this:</p>
<div class="highlight highlight-source-js"><pre><span class="pl-en">styled</span>(Component).<span class="pl-en">attrs</span>({})<span class="pl-s"><span class="pl-pds">`</span></span>
<span class="pl-s">  color: red;</span>
<span class="pl-s"><span class="pl-pds">`</span></span>;</pre></div>
<h2>GraphQL</h2>
<h3>Prevent formatting GraphQL template literals with expressions (<a href="https://urls.greenkeeper.io/prettier/prettier/pull/2975" class="issue-link js-issue-link" data-error-text="Failed to load issue title" data-id="262809788" data-permission-text="Issue title is private" data-url="https://github.com/prettier/prettier/issues/2975">#2975</a>) by <a href="https://urls.greenkeeper.io/duailibe" class="user-mention">@duailibe</a></h3>
<p>Prettier doesn't support formatting JavaScript expressions in GraphQL. See <a href="https://urls.greenkeeper.io/prettier/prettier/issues/2640" class="issue-link js-issue-link" data-error-text="Failed to load issue title" data-id="251412470" data-permission-text="Issue title is private" data-url="https://github.com/prettier/prettier/issues/2640">#2640</a> for tracking. There was a bug where formatting an expression lead to invalid code, so we've completely disabled formatting GraphQL when it contains JavaScript expressions until we fully support it.</p>
<div class="highlight highlight-source-js"><pre><span class="pl-c"><span class="pl-c">//</span> Before</span>
(invalid code)

<span class="pl-c"><span class="pl-c">//</span> After</span>
<span class="pl-en">graphql</span>(schema, <span class="pl-s"><span class="pl-pds">`</span>{ query test { id }} <span class="pl-s1"><span class="pl-pse">${</span>fragment<span class="pl-pse">}</span></span><span class="pl-pds">`</span></span>)</pre></div>
<h2>CLI</h2>
<h3>Don't use ANSI codes if stdout isn't a TTY (<a href="https://urls.greenkeeper.io/prettier/prettier/pull/2903" class="issue-link js-issue-link" data-error-text="Failed to load issue title" data-id="260810621" data-permission-text="Issue title is private" data-url="https://github.com/prettier/prettier/issues/2903">#2903</a>) by <a href="https://urls.greenkeeper.io/narigo" class="user-mention">@Narigo</a></h3>
<p>Previously, piping the output of <code>--list-different</code> to other tools was troublesome due to the ANSI color codes we use to show whether a file was modified or not. This PR disables the use of color when Prettier is piped to a different process.</p>
<h2>Configuration</h2>
<h3>Use relative paths with CLI (<a href="https://urls.greenkeeper.io/prettier/prettier/pull/2969" class="issue-link js-issue-link" data-error-text="Failed to load issue title" data-id="262449905" data-permission-text="Issue title is private" data-url="https://github.com/prettier/prettier/issues/2969">#2969</a>) by <a href="https://urls.greenkeeper.io/ahmedelgabri" class="user-mention">@ahmedelgabri</a></h3>
<p>This fixes a bug where passing a path starting with <code>./</code> to the CLI wouldn't match patterns used in <code>.prettierignore</code>.</p>
<pre><code># .prettierignore
path/to/*.js
</code></pre>
<p>After this fix, no files will be written to when executing:</p>
<div class="highlight highlight-source-shell"><pre>$ prettier --write ./path/to/<span class="pl-k">*</span>.js</pre></div>
<h3>Resolve file paths relative to config file (<a href="https://urls.greenkeeper.io/prettier/prettier/pull/3037" class="issue-link js-issue-link" data-error-text="Failed to load issue title" data-id="265550594" data-permission-text="Issue title is private" data-url="https://github.com/prettier/prettier/issues/3037">#3037</a>) by <a href="https://urls.greenkeeper.io/azz" class="user-mention">@azz</a></h3>
<p>This fixes an issue where <code>.prettierrc</code> overrides, under certain conditions, were not being respected for absolute paths with the <code>resolveConfig</code> API.</p>
<h2>Core</h2>
<h3>Respect CJK width and Combined Characters (<a href="https://urls.greenkeeper.io/prettier/prettier/pull/3003" class="issue-link js-issue-link" data-error-text="Failed to load issue title" data-id="264227112" data-permission-text="Issue title is private" data-url="https://github.com/prettier/prettier/issues/3003">#3003</a>,  <a href="https://urls.greenkeeper.io/prettier/prettier/pull/3015" class="issue-link js-issue-link" data-error-text="Failed to load issue title" data-id="264803229" data-permission-text="Issue title is private" data-url="https://github.com/prettier/prettier/issues/3015">#3015</a>) by <a href="https://urls.greenkeeper.io/ikatyang" class="user-mention">@ikatyang</a></h3>
<p>Chinese, Japanese and Korean characters are now considered two characters wide.</p>
<div class="highlight highlight-source-js"><pre><span class="pl-c"><span class="pl-c">//</span> Before (exceeds print width when CJK characters are 2x monospace chars)</span>
<span class="pl-k">const</span> <span class="pl-c1">x</span> <span class="pl-k">=</span> [<span class="pl-s"><span class="pl-pds">"</span>中文<span class="pl-pds">"</span></span>, <span class="pl-s"><span class="pl-pds">"</span>中文<span class="pl-pds">"</span></span>, <span class="pl-s"><span class="pl-pds">"</span>中文<span class="pl-pds">"</span></span>, <span class="pl-s"><span class="pl-pds">"</span>中文<span class="pl-pds">"</span></span>, <span class="pl-s"><span class="pl-pds">"</span>中文<span class="pl-pds">"</span></span>, <span class="pl-s"><span class="pl-pds">"</span>中文<span class="pl-pds">"</span></span>, <span class="pl-s"><span class="pl-pds">"</span>中文<span class="pl-pds">"</span></span>, <span class="pl-s"><span class="pl-pds">"</span>中文<span class="pl-pds">"</span></span>, <span class="pl-s"><span class="pl-pds">"</span>中文<span class="pl-pds">"</span></span>, <span class="pl-s"><span class="pl-pds">"</span>中文<span class="pl-pds">"</span></span>, <span class="pl-s"><span class="pl-pds">"</span>中文<span class="pl-pds">"</span></span>];

<span class="pl-c"><span class="pl-c">//</span> After</span>
<span class="pl-k">const</span> <span class="pl-c1">x</span> <span class="pl-k">=</span> [
  <span class="pl-s"><span class="pl-pds">"</span>中文<span class="pl-pds">"</span></span>,
   <span class="pl-c"><span class="pl-c">//</span> ...</span>
  <span class="pl-s"><span class="pl-pds">"</span>中文<span class="pl-pds">"</span></span>
];</pre></div>
<p><a href="https://urls.greenkeeper.io/prettier/prettier/pull/3015" class="issue-link js-issue-link" data-error-text="Failed to load issue title" data-id="264803229" data-permission-text="Issue title is private" data-url="https://github.com/prettier/prettier/issues/3015">#3015</a> also ensures that combining characters (e.g. <code>Á</code>) are counted as one character.</p>
<h2>Editor Support</h2>
<h3>Implement getSupportInfo() and use it for inference (<a href="https://urls.greenkeeper.io/prettier/prettier/pull/3033" class="issue-link js-issue-link" data-error-text="Failed to load issue title" data-id="265494522" data-permission-text="Issue title is private" data-url="https://github.com/prettier/prettier/issues/3033">#3033</a>) by <a href="https://urls.greenkeeper.io/azz" class="user-mention">@azz</a></h3>
<p>We've added a new function to the API (<code>prettier.getSupportInfo([version])</code>), and the CLI <code>--support-info</code>. This can be used to interrogate Prettier to find out which languages the current version, or an older version, supports. It also provides useful information such as CodeMirror IDs, tmScopes, etc, which can be used to automate some of the work done with lookup tables in text editor integrations.</p>
<p>Internally, we use this information to drive which extensions trigger which parsers, and support some common files that don't have extensions, like <code>.prettierrc</code>, <code>Jakefile</code>, etc.</p>
<div class="highlight highlight-source-shell"><pre><span class="pl-c"><span class="pl-c">#</span> prettier knows that this file is JSON now.</span>
$ prettier --write .prettierrc</pre></div>
<h3>Split source elements relative to their language. (<a href="https://urls.greenkeeper.io/prettier/prettier/pull/3069" class="issue-link js-issue-link" data-error-text="Failed to load issue title" data-id="266872265" data-permission-text="Issue title is private" data-url="https://github.com/prettier/prettier/issues/3069">#3069</a>) by <a href="https://urls.greenkeeper.io/cigit" class="user-mention">@CiGit</a></h3>
<p>This fixes an issue in editors that support range formatting, where formatting an object would cause Prettier to crash.</p>
<hr>
<h1>Thanks! <g-emoji alias="heart" fallback-src="https://assets-cdn.github.com/images/icons/emoji/unicode/2764.png" ios-version="6.0">❤️</g-emoji></h1>
<p>Thanks to everyone who contributed to this release, as well as those who raised issues! Prettier has become a highly stable piece of software that a large amount of people trust with their code. We take that trust seriously, and fix rare issues that break code with the highest priority. We can't fix these issues if we don't know about them, so never be afraid to <a href="https://urls.greenkeeper.io/prettier/prettier/issues/new">create an issue</a>!</p>
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