michal-p/template_node-babel

#Template repository for creating small javascript application on javascript with text files input and output

Instalation (node has to be already installed) ##BABEL setup in CLI How to run javascript with node and traspile by babel

###1. Create package json

npm init

###2. Create index.js file ###3. Install babel, create directory node_modules

npm install --save-dev @babel/core @babel/cli

###4. This will appear in package.json

{
  "devDependencies": {
+   "@babel/cli": "^7.0.0",
+   "@babel/core": "^7.0.0"
  }
}

###5. Add to package.json babel command

  {
    "name": "my-project",
    "version": "1.0.0",
+   "scripts": {
+     "babel": "babel index.js -d lib"
+   },
    "devDependencies": {
      "babel-cli": "^6.0.0"
    }
  }

###6. Run babel command which create also lib folder where transpiled javascript files will be saved Now we can run from terminal this is command from package.json

npm run babel

./node_modules/.bin/babel src -d lib

###7. Install env preset, which enables transform for ES2015+

npm install @babel/preset-env --save-dev

###8. Create .babelrc file to enable env preset

{
  "presets": ["@babel/preset-env"]
}

###9. Run babel with watch which means that after every save it transform index.js from ES2015+ to ./lib/index.js ES5

./node_modules/.bin/babel --watch index.js -d lib

###10. Run compiled(transformed)(ES5) index.js file in ./lib/index.js

cd ./lib
node index.js

##GIT setup ###1. Create repository

git init

###2. Add .gitignore

+ node_modules

michal-p / template_node-babel

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