autoprefixerjavascript
官方是這樣說的:
Parse CSS and add vendor prefixes to CSS rules using values from the Can I Use website
,也就是說它是一個自動檢測兼容性給各個瀏覽器加個內核前綴的插件。css
舉個栗子:最新的彈性盒模型flux實際代碼:html
:fullscreen a { display: flex }
插件自動補充後java
a { display: -webkit-box; display: -webkit-flex; display: -ms-flexbox; display: flex }
效果顯而易見,咱們能夠更專一於css佈局和美化,而不須要花過多的精力都寫相同的外碼而加上不一樣的前綴,也減小了冗餘代碼。node
使用方法:jquery
cnpm install --save-dev autoprefixer postcss-loader
webpack
var autoprefixer = require('autoprefixer'); module.exports={ //其餘配置這裏就不寫了 module:{ loaders:[ { test:/\.css$/, //在原有基礎上加上一個postcss的loader就能夠了 loaders:['style-loader','css-loader','postcss-loader'] } ] }, postcss:[autoprefixer({browsers:['last 2 versions']})] }
html-webpack-plugincss3
cnpm install html-webpack-plugin --save-dev
web
//webpack.config.js var HtmlWebpackPlugin = require('html-webpack-plugin'); module.exports={ entry:'./index.js', output:{ path:__dirname+'/dist', filename:'bundle.js' } plugins:[ new HtmlWebpackPlugin() ] }
做用:它會在dist目錄下自動生成一個index.htmlsql
<!DOCTYPE html> <html> <head> <meta charset="UTF-8"> <title>Webpack App</title> </head> <body> <script src="bundle.js"></script> </body> </html>
其餘配置參數:
{
entry: 'index.js', output: { path: 'dist', filename: 'bundle.js' }, plugins: [ new HtmlWebpackPlugin({ title: 'My App', filename: 'admin.html', template:'header.html', inject: 'body', favicon:'./images/favico.ico', minify:true, hash:true, cache:false, showErrors:false, "chunks": { "head": { "entry": "assets/head_bundle.js", "css": [ "main.css" ] }, xhtml:false }) ] }
--- header.html ---
<!DOCTYPE html> <html> <head> <meta http-equiv="Content-type" content="text/html; charset=utf-8"/> <title><%= htmlWebpackPlugin.options.title %></title> </head> <body> </body> </html>
做用:
title: 設置title的名字
filename: 設置這個html的文件名
template:要使用的模塊的路徑
inject: 把模板注入到哪一個標籤後 'body', favicon: 給html添加一個favicon './images/favico.ico', minify:是否壓縮 {...} | false (最新api變更,原來是ture|false 感謝@onmi指正) hash:是否hash化 true false , cache:是否緩存, showErrors:是否顯示錯誤, chunks:目前沒太明白 xhtml:是否自動畢業標籤 默認false
extract-text-webpack-plugin
官網是這麼解釋的
Extract text from bundle into a file.
,把額外的數據加到編譯好的文件中
var ExtractTextPlugin = require("extract-text-webpack-plugin"); module.exports = { module: { loaders: [ { test: /\.css$/, loader: ExtractTextPlugin.extract("style-loader", "css-loader") } ] }, plugins: [ new HtmlWebpackPlugin({ template: './src/public/index.html', inject: 'body' }), new ExtractTextPlugin("[name].[hash].css") ] }
說明:將css放到index.html的body上面
copy-webpack-plugin
官方這樣解釋
Copy files and directories in webpack
,在webpack中拷貝文件和文件夾
cnpm install --save-dev copy-webpack-plugin new CopyWebpackPlugin([{ from: __dirname + '/src/public' }]),
做用:把public 裏面的內容所有拷貝到編譯目錄
參數 | 做用 | 其餘說明 |
---|---|---|
from | 定義要拷貝的源目錄 | from: __dirname + '/src/public' |
to | 定義要烤盤膛的目標目錄 | from: __dirname + '/dist' |
toType | file 或者 dir |
可選,默認是文件 |
force | 強制覆蓋先前的插件 | 可選 默認false |
context | 不知道做用 | 可選 默認 base context 可用 specific context |
flatten | 只拷貝文件無論文件夾 | 默認是false |
ignore | 忽略拷貝指定的文件 | 能夠用模糊匹配 |
webpack.ProvidePlugin [webpack內置插件 ]
new webpack.ProvidePlugin({ $: "jquery", jQuery: "jquery", "window.jQuery": "jquery" })) new webpack.NoErrorsPlugin(), new webpack.optimize.DedupePlugin(), new webpack.optimize.UglifyJsPlugin(), new webpack.optimize.CommonsChunkPlugin('common.js')
做用: 和上面5個一一對應
當模塊使用這些變量的時候,wepback會自動加載。(區別於window掛載,感謝@lihuanghe121指正) 不顯示錯誤插件 查找相等或近似的模塊,避免在最終生成的文件中出現重複的模塊 醜化js 混淆代碼而用 提取公共代碼的插件
'use strict'; // Modules var webpack = require('webpack'); var autoprefixer = require('autoprefixer'); var HtmlWebpackPlugin = require('html-webpack-plugin'); var ExtractTextPlugin = require('extract-text-webpack-plugin'); var CopyWebpackPlugin = require('copy-webpack-plugin'); /** * Env * Get npm lifecycle event to identify the environment */ var ENV = process.env.npm_lifecycle_event; var isTest = ENV === 'test' || ENV === 'test-watch'; var isProd = ENV === 'build'; module.exports = function makeWebpackConfig() { var config = {}; config.entry = isTest ? {} : { app: './src/app/app.js' }; config.output = isTest ? {} : { // Absolute output directory path: __dirname + '/dist', publicPath: isProd ? '/' : 'http://localhost:8080/', filename: isProd ? '[name].[hash].js' : '[name].bundle.js', chunkFilename: isProd ? '[name].[hash].js' : '[name].bundle.js' }; if (isTest) { config.devtool = 'inline-source-map'; } else if (isProd) { config.devtool = 'source-map'; } else { config.devtool = 'eval-source-map'; } config.module = { preLoaders: [], loaders: [{ test: /\.js$/, loader: 'babel', exclude: /node_modules/ }, { test: /\.css/, loader: isTest ? 'null' : ExtractTextPlugin.extract('style', 'css?sourceMap!postcss') }, { test: /\.(png|jpg|jpeg|gif|svg|woff|woff2|ttf|eot)$/, loader: 'file' }, { test: /\.json$/, loader: 'json' }, { test: /\.scss/, loader: 'style!css!sass' }, { test: /\.html$/, loader: 'raw' }] }; if (isTest) { config.module.preLoaders.push({ test: /\.js$/, exclude: [ /node_modules/, /\.spec\.js$/ ], loader: 'isparta-instrumenter' }) } config.postcss = [ autoprefixer({ browsers: ['last 2 version'] }) ]; config.plugins = []; if (!isTest) { config.plugins.push( new HtmlWebpackPlugin({ template: './src/public/index.html', inject: 'body' }), new ExtractTextPlugin('[name].[hash].css', {disable: !isProd}) ) } if (isProd) { config.plugins.push( new webpack.NoErrorsPlugin(), new webpack.optimize.DedupePlugin(), new webpack.optimize.UglifyJsPlugin(), new CopyWebpackPlugin([{ from: __dirname + '/src/public' }]), new webpack.ProvidePlugin({ $: "jquery", jQuery: "jquery", "window.jQuery": "jquery" })) } config.devServer = { contentBase: './src/public', stats: 'minimal' }; return config; }();
if (isTest) { config.devtool = 'inline-source-map'; }
做用: 使用source-map能夠在debug的時候看到源代碼,方便 查錯