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apples

v1.0.4

Published

use rollup to develop a npm package

Downloads

8

Readme

已包含的工具

  • helpers: [object] 辅助函数集合
  • I18N: [class] 基于 i18next 的国际化
  • time: [object] 格式化时间
  • storage: [object] 本地存储
  • REST: [class] 遵循 RESTful 规范的接口请求类
  • urlParams: [object] 获取 URL 参数

脚手架简介

Rollup.js 支持多入口的构建方案,用于多个 library 共存的情况,如工具库等。

Rollup 介绍

Rollup 是一个 JavaScript 模块打包器,可以将小块代码编译成大块复杂的代码,例如 library 或应用程序。

链接

使用

# 下载代码
$ git clone https://github.com/zhaotoday/rollup.git

# 开发、调试
$ npm run dev myLibrary

# 构建代码
$ npm run build myLibrary

# 校验 JS
$ npm run eslint

# 校验 CSS
$ npm run stylelint

# 登录 npm
$ npm login

# 发布包,请注意,如果非首次发布,需要修改 package.json 的版本字段 version
$ npm publish

# 安装包
$ npm install --save my-package
// 引用 myLibrary
import myLibrary from 'my-package/libs/myLibrary'

// 调用 myLibrary 的方法
myLibrary.someFunc()

library 的命名规范

  • 请在 src 目录下新建并开发你的 library,如案例的 urlParams 文件夹,其中 index.js 为入口文件;
  • 如果暴露的是个类或构造函数,请用大驼峰命名法 (big camel-case),如:MyClass、MyConstructor;
  • 其他,请用小驼峰命名法 (little camel-case):如:myLibrary

相关包

1. rollup-watch

用于源文件改变时,自动重新构建。

2. rollup-plugin-node-resolve

指导 Rollup 如何去寻找外部的模块。

3. rollup-plugin-commonjs

大部份 npm 包都被输出为 CommonJS 模块,在 Rollup 处理它们之前,需要将 CommonJS 转成 ES2015。

注意 rollup-plugin-commonjs 应该在其它插件变换你的模块之前使用 - 这是为了避免其它插件做了一些改变,而这改变会破坏了 CommonJS 的检测。

4. rollup-plugin-babel

在项目中使用 Babel,可以用上那些未被浏览器和 Node.js 支持的未来的 JavaScript 特性。

npm install --save-dev rollup-plugin-babel babel-preset-latest babel-plugin-external-helpers

5. rollup-plugin-postcss

添加 PostCSS 支持。

npm install --save-dev rollup-plugin-postcss postcss-simple-vars postcss-nested postcss-cssnext cssnano

一些建议

  • 建议本地安装 Rollup,这样任何人克隆你的项目和运行 npm install 将会得到一个兼容的版本;
  • 建议构建同时支持 UMD 和 CommonJS 格式,以满足所有调用场景:
    1. UMD 格式需要把依赖包打进目标文件;
    2. CommonJS 格式需要将依赖包申明为外部依赖。
  • 如果开发的是纯 JS 的 npm 包,请将 PostCSS 的相关插件去除(当然,保留着也无妨)。