Typescript lib starter

This npm library starter:

creates package for both Node and Browser
build creates 3 standard "bundle" formats:
- main -> UMD bundle for Node and Browser
- module -> transpiled files to ES5 + es2015 modules for tree shaking
- es2015 -> raw files transpiled to latest ES standard ( es2017 ) ( this is useful if you wann transpile everthing or just wann ship untranspiled esNext code for evergreen browsers)
also we provide experimantal FESM bundle thanks to Webpack 3 and scope hoisting -> you can find it in lib-fesm folder ( scope hoisting is now enabled also within UMD == smaller payload size )
type definitions are automatically generated and shipped with your package

Start coding jedi!

git clone https://github.com/Hotell/typescript-lib-starter <your-libary-folder-name>

cd <your-libary-folder-name>

rm -rf .git && git init

Open package.json and reset following fields:

name
version ( It is recommended to start from 1.0.0 )
description
main ( "umd/typescript-lib-starter.js" => "umd/{name}.js" )
repository.url
author
license ( use whatever you want )

Now install all dependencies

yarn install

Happy coding !

Consumption of published library:

yarn add my-new-library or npm install my-new-library

Webpack

// main.ts
import { Greeter } from 'my-new-library';

const mountPoint = document.getElementById('app');
const App = () => {
  const greeter = new Greeter('Stranger');
  return `<h1>${greeter.greet()}</h1>`
}
const render = (Root: Function, where: HTMLElement) => {
  where.innerHTML = Root();
}

render(App, mountPoint);

<html>
  <head>
    <script src="bundle.js" async></script>
  </head>
  <body>
    <div id="app"></div>
  </body>
</html>

UMD ( no bundler )

<html>
  <head>
    <script src="node_modules/my-lib/umd/my-new-library.min.js"></script>
    <script async>
        var Greeter = MyLib.Greeter;

        var App = function() {
          var greeter = new Greeter('Stranger');
          return '<h1>'+greeter.greet()+'</h1>'
        }
        var render = function(Root, where) {
          where.innerHTML = Root();
        }

        render(App, mountPoint);
    </script>
  </head>
  <body>
    <div id="app"></div>
  </body>
</html>

Publishing/Release

NOTE: you have to create npm account and register token on your machine -> npm adduser

If you are using scope don't forget to --scope

yarn release

which will do following:

bump version and tag
updates/creates CHANGELOG.md
pushes to github master branch
publishes build package to npm

releases are handled by awesome standard-version

Initial Release (without bumping package.json version):

yarn release -- --first-release

Pre-release

To get from 1.1.2 to 1.1.2-0:

yarn release -- --prerelease

Alpha: To get from 1.1.2 to 1.1.2-alpha.0:

yarn release -- --prerelease alpha

Beta: To get from 1.1.2 to 1.1.2-beta.0:

yarn release -- --prerelease beta

Dry run mode

See what commands would be run, without committing to git or updating files

yarn release -- --dry-run

Check what files gonna be published to npm

CLI output via yarn release:preflight
or yarn release:preflight:package will create tarball which you can check

Check size of your published NPM bundle

run yarn build then npm run size

Commit ( via commitizen )

this is preffered way how to create convetional-changelog valid commits
if you preffer your custom tool we provide a commit hook linter which will error out, it you provide invalid commit message
if you are in rush and just wanna skip commit message valiation just prefix your message with WIP: something done ( if you do this please squash your work when you're done with proper commit message so standard-version can create Changelog and bump version of your library appropriately )

yarn cz - will invoke commitizen CLI

Note

`import()`

This starter uses latest typescript >=2.4 which adds supprot for lazy loading chunks/modules via import().

Please note that if you wanna use that feature, compiler will complain because declaration generation is turned on, and currently TS can't handle type generation with types that will be loaded in the future ( lazily )

How to solve this:

turn of type checking and don't generate types for that lazy import: import('./components/button') as any
or you can use this temporary workaround

hariprasadiit / typescript-lib-starter