README.md · 范禀坤/tsaxios

# TypeScript library starter

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A starter project that makes creating a TypeScript library extremely easy.

![](https://i.imgur.com/opUmHp0.png)

### 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 name.

### Features

- Zero-setup. After running `npm install` things will 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)

### Importing library

You can import the generated bundle to use the whole library generated by this starter:

```javascript
import myLib from 'mylib'
```

Additionally, you can import the transpiled modules from `dist/lib` in case you have a modular library:

```javascript
import something from 'mylib/dist/lib/something'
```

### NPM scripts

- `npm t`: Run test suite
 - `npm start`: Run `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`: Generate 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:)

### 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.

Good news: the setup is here for you, you must only include the dependency name in `external` property within `rollup.config.js`. For example, if you want to exclude `lodash`, just write there `external: ['lodash']`.

### Automatic releases

_**Prerequisites**: you need to create/login accounts and add your project to:_
 - [npm](https://www.npmjs.com/)
 - [Travis CI](https://travis-ci.org)
 - [Coveralls](https://coveralls.io)

_**Prerequisite for Windows**: Semantic-release uses
**[node-gyp](https://github.com/nodejs/node-gyp)** so you will need to
install
[Microsoft's windows-build-tools](https://github.com/felixrieseberg/windows-build-tools)
using this command:_

```bash
npm install --global --production windows-build-tools
```

#### Setup steps

Follow the console instructions to install semantic release and run it (answer NO to "Do you want a `.travis.yml` file with semantic-release setup?").

_Note: make sure you've setup `repository.url` in your `package.json` file_

```bash
npm install -g semantic-release-cli
semantic-release-cli setup
# IMPORTANT!! Answer NO to "Do you want a `.travis.yml` file with semantic-release setup?" question. It 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](https://github.com/) and [npm](https://www.npmjs.com/), 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 two 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 going to 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/await`...), 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 on first run?

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`

## Resources

- [Write a library using TypeScript library starter](https://dev.to/alexjoverm/write-a-library-using-typescript-library-starter) by [@alexjoverm](https://github.com/alexjoverm/)
- [📺 Create a TypeScript Library using typescript-library-starter](https://egghead.io/lessons/typescript-create-a-typescript-library-using-typescript-library-starter) by [@alexjoverm](https://github.com/alexjoverm/)
- [Introducing TypeScript Library Starter Lite](https://blog.tonysneed.com/2017/09/15/introducing-typescript-library-starter-lite/) by [@tonysneed](https://github.com/tonysneed)

## Projects using `typescript-library-starter`

Here are some projects that use `typescript-library-starter`:

- [NOEL - A universal, human-centric, replayable event emitter](https://github.com/lifenautjoe/noel)
- [droppable - A library to give file dropping super-powers to any HTML element.](https://github.com/lifenautjoe/droppable)
- [redis-messaging-manager - Pubsub messaging library, using redis and rxjs](https://github.com/tomyitav/redis-messaging-manager)

## Credits

Made with :heart: by [@alexjoverm](https://twitter.com/alexjoverm) and all these wonderful contributors ([emoji key](https://github.com/kentcdodds/all-contributors#emoji-key)):

| [<img src="https://avatars.githubusercontent.com/u/6052309?v=3" width="100px;"/> Ciro](https://www.linkedin.com/in/ciro-ivan-agulló-guarinos-42109376) [💻](https://github.com/alexjoverm/typescript-library-starter/commits?author=k1r0s "Code") [🔧](#tool-k1r0s "Tools") | [<img src="https://avatars.githubusercontent.com/u/947523?v=3" width="100px;"/> Marius Schulz](https://blog.mariusschulz.com) [📖](https://github.com/alexjoverm/typescript-library-starter/commits?author=mariusschulz "Documentation") | [<img src="https://avatars.githubusercontent.com/u/4152819?v=3" width="100px;"/> Alexander Odell](https://github.com/alextrastero) [📖](https://github.com/alexjoverm/typescript-library-starter/commits?author=alextrastero "Documentation") | [<img src="https://avatars1.githubusercontent.com/u/8728882?v=3" width="100px;"/> Ryan Ham](https://github.com/superamadeus) [💻](https://github.com/alexjoverm/typescript-library-starter/commits?author=superamadeus "Code") | [<img src="https://avatars1.githubusercontent.com/u/8458838?v=3" width="100px;"/> Chi](https://consiiii.me) [💻](https://github.com/alexjoverm/typescript-library-starter/commits?author=ChinW "Code") [🔧](#tool-ChinW "Tools") [📖](https://github.com/alexjoverm/typescript-library-starter/commits?author=ChinW "Documentation") | [<img src="https://avatars2.githubusercontent.com/u/2856501?v=3" width="100px;"/> Matt Mazzola](https://github.com/mattmazzola) [💻](https://github.com/alexjoverm/typescript-library-starter/commits?author=mattmazzola "Code") [🔧](#tool-mattmazzola "Tools") | [<img src="https://avatars0.githubusercontent.com/u/2664047?v=3" width="100px;"/> Sergii Lischuk](http://leefrost.github.io) [💻](https://github.com/alexjoverm/typescript-library-starter/commits?author=Leefrost "Code") |
| :---: | :---: | :---: | :---: | :---: | :---: | :---: |
| [<img src="https://avatars1.githubusercontent.com/u/618922?v=3" width="100px;"/> Steve Lee](http;//opendirective.com) [🔧](#tool-SteveALee "Tools") | [<img src="https://avatars0.githubusercontent.com/u/5127501?v=3" width="100px;"/> Flavio Corpa](http://flaviocorpa.com) [💻](https://github.com/alexjoverm/typescript-library-starter/commits?author=kutyel "Code") | [<img src="https://avatars2.githubusercontent.com/u/22561997?v=3" width="100px;"/> Dom](https://github.com/foreggs) [🔧](#tool-foreggs "Tools") | [<img src="https://avatars1.githubusercontent.com/u/755?v=4" width="100px;"/> Alex Coles](http://alexbcoles.com) [📖](https://github.com/alexjoverm/typescript-library-starter/commits?author=myabc "Documentation") | [<img src="https://avatars2.githubusercontent.com/u/1093738?v=4" width="100px;"/> David Khourshid](https://github.com/davidkpiano) [🔧](#tool-davidkpiano "Tools") | [<img src="https://avatars0.githubusercontent.com/u/7225802?v=4" width="100px;"/> Aarón García Hervás](https://aarongarciah.com) [📖](https://github.com/alexjoverm/typescript-library-starter/commits?author=aarongarciah "Documentation") | [<img src="https://avatars2.githubusercontent.com/u/13683986?v=4" width="100px;"/> Jonathan Hart](https://www.stuajnht.co.uk) [💻](https://github.com/alexjoverm/typescript-library-starter/commits?author=stuajnht "Code") |
| [<img src="https://avatars0.githubusercontent.com/u/13509204?v=4" width="100px;"/> Sanjiv Lobo](https://github.com/Xndr7) [📖](https://github.com/alexjoverm/typescript-library-starter/commits?author=Xndr7 "Documentation") | [<img src="https://avatars3.githubusercontent.com/u/7473800?v=4" width="100px;"/> Stefan Aleksovski](https://github.com/sAleksovski) [💻](https://github.com/alexjoverm/typescript-library-starter/commits?author=sAleksovski "Code") | [<img src="https://avatars2.githubusercontent.com/u/8853426?v=4" width="100px;"/> dev.peerapong](https://github.com/devpeerapong) [💻](https://github.com/alexjoverm/typescript-library-starter/commits?author=devpeerapong "Code") | [<img src="https://avatars0.githubusercontent.com/u/22260722?v=4" width="100px;"/> Aaron Groome](http://twitter.com/Racing5372) [📖](https://github.com/alexjoverm/typescript-library-starter/commits?author=Racing5372 "Documentation") | [<img src="https://avatars3.githubusercontent.com/u/180963?v=4" width="100px;"/> Aaron Reisman](https://github.com/lifeiscontent) [💻](https://github.com/alexjoverm/typescript-library-starter/commits?author=lifeiscontent "Code") | [<img src="https://avatars1.githubusercontent.com/u/32557482?v=4" width="100px;"/> kid-sk](https://github.com/kid-sk) [📖](https://github.com/alexjoverm/typescript-library-starter/commits?author=kid-sk "Documentation") | [<img src="https://avatars0.githubusercontent.com/u/1503089?v=4" width="100px;"/> Andrea Gottardi](http://about.me/andreagot) [📖](https://github.com/alexjoverm/typescript-library-starter/commits?author=AndreaGot "Documentation") |
| [<img src="https://avatars3.githubusercontent.com/u/1375860?v=4" width="100px;"/> Yogendra Sharma](http://TechiesEyes.com) [📖](https://github.com/alexjoverm/typescript-library-starter/commits?author=Yogendra0Sharma "Documentation") | [<img src="https://avatars3.githubusercontent.com/u/7407177?v=4" width="100px;"/> Rayan Salhab](http://linkedin.com/in/rayan-salhab/) [💻](https://github.com/alexjoverm/typescript-library-starter/commits?author=cyphercodes "Code") |

This project follows the [all-contributors](https://github.com/kentcdodds/all-contributors) specification. Contributions of any kind are welcome!

范禀坤/tsaxios

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