| .vscode | ||
| config | ||
| scripts | ||
| src | ||
| .editorconfig | ||
| .gitignore | ||
| .npmignore | ||
| .npmrc | ||
| .prettierignore | ||
| .travis.yml | ||
| .yarnrc | ||
| CHANGELOG.md | ||
| LICENSE.md | ||
| package.json | ||
| README.md | ||
| tsconfig.json | ||
| tslint.json | ||
| yarn.lock | ||
Typescript lib starter
This npm library starter:
- creates package for both Node and Browser
- build will creates 4 standard "package" formats:
umd👉 UMD bundle for Node and Browsermainfield in package.jsonesm5👉 transpiled files to ES5 + es2015 modules for tree shakingmodulefield in package.jsonesm2015👉 raw javascript files transpiled from typescript to latest ES standard ( es2018 )es2015field in package.jsonthis is useful if you wanna transpile everything or just wanna ship untranspiled esNext code for evergreen browsers)
fesm👉 experimental bundle type introduced by Angular team (TL;DR: it's an es2015 flattened bundle, like UMD but with latest ECMAscript and JS modules)
- type definitions are automatically generated and shipped with your package
-
typesfield in package.json
-
sideEffects👉 support proper tree-shaking for whole library ( Webpack >= 4). Turn this off or adjust as needed if your modules are not pure!
Start coding in 4 steps !
-
git clone https://github.com/Hotell/typescript-lib-starter <your-libary-folder-name> && cd $_ -
rm -rf .git && git init -
in
package.jsonreset following fields:
{
- "name": "@next-gen/typescript-lib-starter",
+ "name": "{yourLibraryPackageName}",
- "version": "1.7.0",
+ "version": "1.0.0",
- "description": "TypeScript library setup for multiple compilation targets using tsc and webpack",
+ "description": "What is your library all about...",
- "author": "Martin Hochel",
+ "author": "{yourName}",
- "license": "MIT",
+ "license": "{yourLicense}",
"repository": {
"type": "git",
- "url": "https://www.github.com/Hotell/typescript-lib-starter"
+ "url": "https://www.github.com/{yourAccountName}/{yourLibraryPackageName}"
}
}
- Install all dependencies
yarn install
Happy coding ! 🖖
Consumption of published library:
- install it 🤖
yarn add my-new-library
# OR
npm install my-new-library
- use it 💪
Webpack
NOTE:
Don't forget to turn off ES modules transpilation to enable tree-shaking!
- babel:
{"modules": false}- typescript:
{"module": "esnext"}
// main.ts or main.js
import { Greeter } from 'my-new-library'
const mountPoint = document.getElementById('app')
const App = () => {
const greeter = new Greeter('Stranger')
return `<h1>${greeter.greet()}</h1>`
}
const render = (Root: Function, where: HTMLElement) => {
where.innerHTML = Root()
}
render(App, mountPoint)
<!-- index.htm -->
<html>
<head>
<script src="bundle.js" async></script>
</head>
<body>
<div id="app"></div>
</body>
</html>
UMD/ES2015 module aware browsers ( no bundler )
<html>
<head>
<script type="module">
import {Greeter} from './node_modules/my-lib/esm2015/index.js'
const App = () => {
const greeter = new Greeter('Stranger');
return `<h1>${greeter.greet()}</h1>`
}
const render = (Root, where) => {
where.innerHTML = Root();
}
render(App, mountPoint);
</script>
<script nomodule src="node_modules/my-lib/bundles/my-new-library.umd.min.js"></script>
<script nomodule async>
var Greeter = MyLib.Greeter;
var App = function() {
var greeter = new Greeter('Stranger');
return '<h1>'+greeter.greet()+'</h1>'
}
var render = function(Root, where) {
where.innerHTML = Root();
}
render(App, mountPoint);
</script>
</head>
<body>
<div id="app"></div>
</body>
</html>
Publish your library
NOTE:
you have to create npm account and register token on your machine 👉
npm adduserIf you are using scope ( you definitely should 👌) don't forget to
--scope
Execute yarn release which will handle following tasks:
- bump package version and git tag
- update/(create if it doesn't exist) CHANGELOG.md
- push to github master branch + push tags
- publish build packages to npm
NOTE:
all package files are gonna be within
/distfolder from wherenpm publishwill be executed
releases are handled by awesome standard-version
Initial Release (without bumping package.json version):
yarn release --first-release
Pre-release
- To get from
1.1.2to1.1.2-0:
yarn release --prerelease
- Alpha: To get from
1.1.2to1.1.2-alpha.0:
yarn release --prerelease alpha
- Beta: To get from
1.1.2to1.1.2-beta.0:
yarn release --prerelease beta
Dry run mode
See what commands would be run, without committing to git or updating files
yarn release --dry-run
Check what files are gonna be published to npm
cd dist && yarn packORyarn release:preflightwhich will create a tarball with everything that would get published to NPM
Check size of your published NPM bundle
yarn size
Format and fix lint errors
yarn ts:style:fix
Generate documentation
yarn docs
Commit ( via commitizen )
- this is preferred way how to create conventional-changelog valid commits
- if you prefer your custom tool we provide a commit hook linter which will error out, it you provide invalid commit message
- if you are in rush and just wanna skip commit message validation just prefix your message with
WIP: something done( if you do this please squash your work when you're done with proper commit message so standard-version can create Changelog and bump version of your library appropriately )
yarn commit - will invoke commitizen CLI
Troubleshooting
dynamic import()
This starter uses latest TypeScript >=2.9 which has support for lazy loading chunks/modules via import() and also definition acquisition via import('../path-to-module').TypeFoo
Before TS 2.9, it wasn't possible to properly generate ambient definitions if you used dynamic import(). This works now as expected without any hacks ❤️ !
Before TS 2.9
Please note that if you wanna use that feature, compiler will complain because declaration generation is turned on, and currently TS can't handle type generation with types that will be loaded in the future ( lazily )
How to solve this:
- turn of type checking and don't generate types for that lazy import:
import('./components/button') as any- or you can use this temporary workaround