# TypeScript library starter [![styled with prettier](https://img.shields.io/badge/styled_with-prettier-ff69b4.svg)](https://github.com/prettier/prettier) [![Greenkeeper badge](https://badges.greenkeeper.io/alexjoverm/typescript-library-starter.svg)](https://greenkeeper.io/) [![Travis](https://img.shields.io/travis/alexjoverm/typescript-library-starter.svg)](https://travis-ci.org/alexjoverm/typescript-library-starter) [![Coveralls](https://img.shields.io/coveralls/alexjoverm/typescript-library-starter.svg)](https://coveralls.io/github/alexjoverm/typescript-library-starter) [![Dev Dependencies](https://david-dm.org/alexjoverm/typescript-library-starter/dev-status.svg)](https://david-dm.org/alexjoverm/typescript-library-starter?type=dev) [![Donate](https://img.shields.io/badge/donate-paypal-blue.svg)](https://paypal.me/AJoverMorales) A starter project that makes creating a TypeScript library extremely easy. ### Usage ```bash git clone https://github.com/alexjoverm/typescript-library-starter.git YOURFOLDERNAME cd YOURFOLDERNAME # Run npm install and write your library name when asked. That's all! npm install ``` **Start coding!** `package.json` and entry files are already set up for you, so don't worry about linking to your main file, typings, etc. Just keep those files with the same names. ### Features - Zero-setup. After running `npm install` things will be setup for you :wink: - **[RollupJS](https://rollupjs.org/)** for multiple optimized bundles following the [standard convention](http://2ality.com/2017/04/setting-up-multi-platform-packages.html) and [Tree-shaking](https://alexjoverm.github.io/2017/03/06/Tree-shaking-with-Webpack-2-TypeScript-and-Babel/). - Tests, coverage and interactive watch mode using **[Jest](http://facebook.github.io/jest/)** - **[Prettier](https://github.com/prettier/prettier)** and **[TSLint](https://palantir.github.io/tslint/)** for code formatting and consistency. - **Docs automatic generation and deployment** to `gh-pages`, using **[TypeDoc](http://typedoc.org/)** - Automatic types `(*.d.ts)` file generation - **[Travis](https://travis-ci.org)** integration and **[Coveralls](https://coveralls.io/)** report - (Optional) **Automatic releases and changelog**, using [Semantic release](https://github.com/semantic-release/semantic-release), [Commitizen](https://github.com/commitizen/cz-cli), [Conventional changelog](https://github.com/conventional-changelog/conventional-changelog) and [Husky](https://github.com/typicode/husky) (for the git hooks) ### Excluding peerDependencies On library development, one might want to set some peer dependencies, and thus remove those from the final bundle. You can see in [Rollup docs](https://rollupjs.org/#peer-dependencies) how to do that. The good news is here is setup for you, you only must include the dependency name in `external` property within `rollup.config.js`. For example, if you wanna exclude `lodash`, just write there `external: ['lodash']`. ### NPM scripts - `npm t`: Run test suite - `npm start`: Runs `npm run build` in watch mode - `npm run test:watch`: Run test suite in [interactive watch mode](http://facebook.github.io/jest/docs/cli.html#watch) - `npm run test:prod`: Run linting and generate coverage - `npm run build`: Generage bundles and typings, create docs - `npm run lint`: Lints code - `npm run commit`: Commit using conventional commit style ([husky](https://github.com/typicode/husky) will tell you to use it if you haven't :wink:) ### Automatic releases If you'd like to have automatic releases with Semantic Versioning, follow these simple steps. _**Prerequisites**: you need to create/login accounts and add your project to:_ - npm - Travis - Coveralls Run the following command to prepare hooks and stuff: ```bash npm run semantic-release-prepare ``` Follow the console instructions to install semantic release run it (answer NO to "Generate travis.yml"). _Note: make sure you've setup `repository.url` in your `package.json` file_ ```bash npm install -g semantic-release-cli semantic-release setup # IMPORTANT!! Answer NO to "Generate travis.yml" question. Is already prepared for you :P ``` From now on, you'll need to use `npm run commit`, which is a convenient way to create conventional commits. Automatic releases are possible thanks to [semantic release](https://github.com/semantic-release/semantic-release), which publishes your code automatically on github and npm, plus generates automatically a changelog. This setup is highly influenced by [Kent C. Dodds course on egghead.io](https://egghead.io/courses/how-to-write-an-open-source-javascript-library) ### Git Hooks There is already set a `precommit` hook for formatting your code with Prettier :nail_care: By default, there are 2 disabled git hooks. They're set up when you run the `npm run semantic-release-prepare` script. They make sure: - You follow a [conventional commit message](https://github.com/conventional-changelog/conventional-changelog) - Your build is not gonna fail in [Travis](https://travis-ci.org) (or your CI server), since it's runned locally before `git push` This makes more sense in combination with [automatic releases](#automatic-releases) ### FAQ #### `Array.prototype.from`, `Promise`, `Map`... is undefined? TypeScript or Babel only provides down-emits on syntactical features (`class`, `let`, `async/away`...), but not on functional features (`Array.prototype.find`, `Set`, `Promise`...), . For that, you need Polyfills, such as [`core-js`](https://github.com/zloirock/core-js) or [`babel-polyfill`](https://babeljs.io/docs/usage/polyfill/) (which extends `core-js`). For a library, `core-js` plays very nicely, since you can import just the polyfills you need: ```javascript import "core-js/fn/array/find" import "core-js/fn/string/includes" import "core-js/fn/promise" ... ``` #### What is `npm install` doing the first time runned? It runs the script `tools/init` which sets up everything for you. In short, it: - Configures RollupJS for the build, which creates the bundles. - Configures `package.json` (typings file, main file, etc) - Renames main src and test files #### What if I don't want git-hooks, automatic releases or semantic-release? Then you may want to: - Remove `commitmsg`, `postinstall` scripts from `package.json`. That will not use those git hooks to make sure you make a conventional commit - Remove `npm run semantic-release` from `.travis.yml` #### What if I don't want to use coveralls or report my coverage? Remove `npm run report-coverage` from `.travis.yml` ## Credits Made with :heart: by [@alexjoverm](https://twitter.com/alexjoverm) and all these wonderful contributors ([emoji key](https://github.com/all-contributors/all-contributors#emoji-key)): | [
Ciro](https://www.linkedin.com/in/ciro-ivan-agullรณ-guarinos-42109376)
[๐Ÿ’ป](https://github.com/alexjoverm/typescript-library-starter/commits?author=k1r0s 'Code') [๐Ÿ”ง](#tool-k1r0s 'Tools') | [
Marius Schulz](https://blog.mariusschulz.com)
[๐Ÿ“–](https://github.com/alexjoverm/typescript-library-starter/commits?author=mariusschulz 'Documentation') | [
Alexander Odell](https://github.com/alextrastero)
[๐Ÿ“–](https://github.com/alexjoverm/typescript-library-starter/commits?author=alextrastero 'Documentation') | [
Ryan Ham](https://github.com/superamadeus)
[๐Ÿ’ป](https://github.com/alexjoverm/typescript-library-starter/commits?author=superamadeus 'Code') | [
Chi](https://consiiii.me)
[๐Ÿ’ป](https://github.com/alexjoverm/typescript-library-starter/commits?author=ChinW 'Code') [๐Ÿ”ง](#tool-ChinW 'Tools') [๐Ÿ“–](https://github.com/alexjoverm/typescript-library-starter/commits?author=ChinW 'Documentation') | [
Matt Mazzola](https://github.com/mattmazzola)
[๐Ÿ’ป](https://github.com/alexjoverm/typescript-library-starter/commits?author=mattmazzola 'Code') [๐Ÿ”ง](#tool-mattmazzola 'Tools') | [
Sergii Lischuk](http://leefrost.github.io)
[๐Ÿ’ป](https://github.com/alexjoverm/typescript-library-starter/commits?author=Leefrost 'Code') | | :----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------: | :-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------: | :----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------: | :-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------: | :-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------: | :-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------: | :---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------: | | [
Steve Lee](http;//opendirective.com)
[๐Ÿ”ง](#tool-SteveALee 'Tools') | [
Flavio Corpa](http://flaviocorpa.com)
[๐Ÿ’ป](https://github.com/alexjoverm/typescript-library-starter/commits?author=kutyel 'Code') | [
Dom](https://github.com/foreggs)
[๐Ÿ”ง](#tool-foreggs 'Tools') | This project follows the [all-contributors](https://github.com/all-contributors/all-contributors) specification. Contributions of any kind welcome!