JavaScript Project Scripts

Common Scripts and setup files across projects

Babel

Create a file called babel.config.js in the root directory.

To use purely the default settings add:

  const babel = require('javascript-project-scripts/babel');

  module.exports = babel;

To add your own settings, something like this:

module.exports = api => {
  const { plugins, presets } = babel(api);
  /*
  .....
  */
  return {
    plugins,
    presets,
  };
};

ESLint

To use the eslint configuration create .eslintrc.js in your root directory then add the following:

Options

Name	Type	Default	Description
language	{String}	'javascript'	Provides language specific linting rules

Example

  const options = {
    language: 'javascript',
  };

  module.exports = require('javascript-project-scripts/lib/eslintrc.js')(options);

Secondly create .prettierrc.js in your root directory and add the following:

  module.exports = require('javascript-project-scripts/lib/prettierrc.js');

Webpack

Required dependancies

Remove all references to babel and webpack that you are not actively using. (We will take care of most of the dependancies)

Setup

• Create a file in the root directory called webpack.config.js
• The following are required fields:
  • mode - (Required) denotes which configuration we give you from javascript-project-scripts
  • config - See webpack documentation for more information, but you can add any configuration overrides here
    • entry (Required)
    • output (Required)
    • Plugins
      • MiniCssExtractPlugin (Required)

  const webpackConfig = require('javascript-project-scripts/webpack.config');
  const path = require('path');
  const { MiniCssExtractPlugin } = require('javascript-project-scripts');

  const options = {};

  module.exports = webpackConfig({
    mode: "production",
    config: {
      entry: "./src/index.js",
      output: {
        filename: "bundle.[contenthash].js",
        path: path.resolve(__dirname, "dist")
      },
      plugins: [ 
        new MiniCssExtractPlugin({
          filename: `bundle.min.css`,
        }),
      ]
    },
    ...options,
  });

Options

This applies to both the Full and Tiered setups

Name	Type	Default	Description
assetsDir	{String}	'assets'	Sets where in the distribution file defined in output where assets such as images and css files will be stored.
relativeModulesPath	{String}	'./node_modules'	For Projects that have non-standard setups or are mono-repos. This allows points webpack to the hoisted node_modules location.
sourceMap	{Boolean}	false	Enables source maps across, CSS and JavaScript.
devServerOptions	{Object}	{}	Overrides to the default webpack dev server settings
sourceDir	{String}	./src	Sets the source Directory

PostCss loader

This loader lives inside the css rules, you need to define a config that can be empty if you don't want it to do anything, but we advice you take the config from javascript-project-scripts.

This current setup sets up autoprefixer that matches against the current browserlist ensuring that your css is going to work across the supported browsers.

Create a file called postcss.config.js on your root directory.

  module.exports = require('javascript-project-scripts/postcss.config');

Important Notes

• NODE_ENV must be explicitly set to production when building the production bundle.

TypeScript

ESlint

Ensure Babel language is set to typescript

TS Config

Add the file tsconfig.json to the root directory and add the following

{
  "extends": "javascript-project-scripts/tsconfig.json",
}