Boilerplate for NPM projects

Boilerplate for new projects using NPM.

I avoid other boilerplates such as create-react-app when possible. When something inevitably breaks, it's hard to know why and I am left none-the-wiser.

React

React support is pre-wired in the configuration for Babel, ESLint, and Jest but not included as a dependency. The aim is to be compatible with both React and non-React projects.

Babel

• Used for transpiling from ES20xx into ES5/6.
• Used as transpiler for TypeScript with babel-plugin-transform-typescript and @babel/eslint-parser.
• Using presets for react and typescript.

ESLint

• Using eslint:recommended, along with AirBnB rules.
• Using most plugins recommended in community configs.
• ESLint assumes a browser environment with ES6, not a node or web extension environment. Modify .eslintrc.js for other environments.

TypeScript

• Latest ESLint plugins for TypeScript:
  • @typescript-eslint/eslint-plugin
  • @typescript-eslint/parser

Testing

• Using Jest
• Support for TypeScript tests.
• ESLint validation using plugin:jest/recommended