网站搭建平台选哪个,青岛网站建设公司代理,wordpress 博客 注册,网络运维工程师需要考什么证书文章目录 1. 性能优化全景图1.1 优化维度概览1.2 优化效果指标 2. 构建速度优化2.1 缓存策略2.2 并行处理2.3 减少构建范围 3. 输出质量优化3.1 代码分割3.2 Tree Shaking3.3 压缩优化 4. 运行时性能优化4.1 懒加载4.2 预加载4.3 资源优化 5. 高级优化策略5.1 持久化缓存5.2 模… 文章目录 1. 性能优化全景图1.1 优化维度概览1.2 优化效果指标 2. 构建速度优化2.1 缓存策略2.2 并行处理2.3 减少构建范围 3. 输出质量优化3.1 代码分割3.2 Tree Shaking3.3 压缩优化 4. 运行时性能优化4.1 懒加载4.2 预加载4.3 资源优化 5. 高级优化策略5.1 持久化缓存5.2 模块联邦5.3 性能分析 6. 优化效果验证6.1 构建速度分析6.2 性能监控 7. 最佳实践总结7.1 优化策略7.2 持续优化 8. 扩展阅读 1. 性能优化全景图
1.1 优化维度概览 #mermaid-svg-Ceu8SrCCB0SwAGMq {font-family:"trebuchet ms",verdana,arial,sans-serif;font-size:16px;fill:#333;}#mermaid-svg-Ceu8SrCCB0SwAGMq .error-icon{fill:#552222;}#mermaid-svg-Ceu8SrCCB0SwAGMq .error-text{fill:#552222;stroke:#552222;}#mermaid-svg-Ceu8SrCCB0SwAGMq .edge-thickness-normal{stroke-width:2px;}#mermaid-svg-Ceu8SrCCB0SwAGMq .edge-thickness-thick{stroke-width:3.5px;}#mermaid-svg-Ceu8SrCCB0SwAGMq .edge-pattern-solid{stroke-dasharray:0;}#mermaid-svg-Ceu8SrCCB0SwAGMq .edge-pattern-dashed{stroke-dasharray:3;}#mermaid-svg-Ceu8SrCCB0SwAGMq .edge-pattern-dotted{stroke-dasharray:2;}#mermaid-svg-Ceu8SrCCB0SwAGMq .marker{fill:#333333;stroke:#333333;}#mermaid-svg-Ceu8SrCCB0SwAGMq .marker.cross{stroke:#333333;}#mermaid-svg-Ceu8SrCCB0SwAGMq svg{font-family:"trebuchet ms",verdana,arial,sans-serif;font-size:16px;}#mermaid-svg-Ceu8SrCCB0SwAGMq .label{font-family:"trebuchet ms",verdana,arial,sans-serif;color:#333;}#mermaid-svg-Ceu8SrCCB0SwAGMq .cluster-label text{fill:#333;}#mermaid-svg-Ceu8SrCCB0SwAGMq .cluster-label span{color:#333;}#mermaid-svg-Ceu8SrCCB0SwAGMq .label text,#mermaid-svg-Ceu8SrCCB0SwAGMq span{fill:#333;color:#333;}#mermaid-svg-Ceu8SrCCB0SwAGMq .node rect,#mermaid-svg-Ceu8SrCCB0SwAGMq .node circle,#mermaid-svg-Ceu8SrCCB0SwAGMq .node ellipse,#mermaid-svg-Ceu8SrCCB0SwAGMq .node polygon,#mermaid-svg-Ceu8SrCCB0SwAGMq .node path{fill:#ECECFF;stroke:#9370DB;stroke-width:1px;}#mermaid-svg-Ceu8SrCCB0SwAGMq .node .label{text-align:center;}#mermaid-svg-Ceu8SrCCB0SwAGMq .node.clickable{cursor:pointer;}#mermaid-svg-Ceu8SrCCB0SwAGMq .arrowheadPath{fill:#333333;}#mermaid-svg-Ceu8SrCCB0SwAGMq .edgePath .path{stroke:#333333;stroke-width:2.0px;}#mermaid-svg-Ceu8SrCCB0SwAGMq .flowchart-link{stroke:#333333;fill:none;}#mermaid-svg-Ceu8SrCCB0SwAGMq .edgeLabel{background-color:#e8e8e8;text-align:center;}#mermaid-svg-Ceu8SrCCB0SwAGMq .edgeLabel rect{opacity:0.5;background-color:#e8e8e8;fill:#e8e8e8;}#mermaid-svg-Ceu8SrCCB0SwAGMq .cluster rect{fill:#ffffde;stroke:#aaaa33;stroke-width:1px;}#mermaid-svg-Ceu8SrCCB0SwAGMq .cluster text{fill:#333;}#mermaid-svg-Ceu8SrCCB0SwAGMq .cluster span{color:#333;}#mermaid-svg-Ceu8SrCCB0SwAGMq div.mermaidTooltip{position:absolute;text-align:center;max-width:200px;padding:2px;font-family:"trebuchet ms",verdana,arial,sans-serif;font-size:12px;background:hsl(80, 100%, 96.2745098039%);border:1px solid #aaaa33;border-radius:2px;pointer-events:none;z-index:100;}#mermaid-svg-Ceu8SrCCB0SwAGMq :root{--mermaid-font-family:"trebuchet ms",verdana,arial,sans-serif;} Webpack 性能优化 构建速度 输出质量 运行时性能 缓存 并行处理 减少构建范围 代码分割 Tree Shaking 压缩优化 懒加载 预加载 资源优化 1.2 优化效果指标
优化项优化前优化后提升构建时间120s40s66.7%首屏加载4.5s1.8s60%打包体积5.2MB1.8MB65.4% 2. 构建速度优化
2.1 缓存策略
// webpack.config.js
module.exports {cache: {type: filesystem,buildDependencies: {config: [__filename]}}
}2.2 并行处理
const TerserPlugin require(terser-webpack-plugin)module.exports {optimization: {minimize: true,minimizer: [new TerserPlugin({parallel: true,terserOptions: {compress: true,mangle: true}})],}
}2.3 减少构建范围
module.exports {module: {rules: [{test: /\.js$/,exclude: /node_modules/,use: babel-loader}]}
}3. 输出质量优化
3.1 代码分割
module.exports {optimization: {splitChunks: {chunks: all,cacheGroups: {vendors: {test: /[\\/]node_modules[\\/]/,name: vendors,chunks: all}}}}
}3.2 Tree Shaking
module.exports {mode: production,optimization: {usedExports: true,sideEffects: true}
}3.3 压缩优化
const CssMinimizerPlugin require(css-minimizer-webpack-plugin)module.exports {optimization: {minimizer: [new CssMinimizerPlugin({minimizerOptions: {preset: [default,{discardComments: { removeAll: true }}]}})]}
}4. 运行时性能优化
4.1 懒加载
// React 示例
const LazyComponent React.lazy(() import(./LazyComponent))function MyComponent() {return (Suspense fallback{divLoading.../div}LazyComponent //Suspense)
}4.2 预加载
import(/* webpackPreload: true */ ChartingLibrary)4.3 资源优化
module.exports {module: {rules: [{test: /\.(png|jpe?g|gif|svg)$/,use: [{loader: image-webpack-loader,options: {mozjpeg: {progressive: true,quality: 65},pngquant: {quality: [0.65, 0.90],speed: 4}}}]}]}
}5. 高级优化策略
5.1 持久化缓存
module.exports {output: {filename: [name].[contenthash].js,chunkFilename: [name].[contenthash].js}
}5.2 模块联邦
// app1/webpack.config.js
module.exports {plugins: [new ModuleFederationPlugin({name: app1,filename: remoteEntry.js,exposes: {./Button: ./src/Button}})]
}// app2/webpack.config.js
module.exports {plugins: [new ModuleFederationPlugin({name: app2,remotes: {app1: app1http://localhost:3001/remoteEntry.js}})]
}5.3 性能分析
const { BundleAnalyzerPlugin } require(webpack-bundle-analyzer)module.exports {plugins: [new BundleAnalyzerPlugin({analyzerMode: static,reportFilename: report.html,openAnalyzer: false})]
}6. 优化效果验证
6.1 构建速度分析
# 安装 speed-measure-webpack-plugin
npm install --save-dev speed-measure-webpack-plugin# 配置使用
const SpeedMeasurePlugin require(speed-measure-webpack-plugin)
const smp new SpeedMeasurePlugin()module.exports smp.wrap({// webpack 配置
})6.2 性能监控
// 使用 web-vitals 监控核心性能指标
import { getCLS, getFID, getLCP } from web-vitalsfunction sendToAnalytics(metric) {console.log(metric)
}getCLS(sendToAnalytics)
getFID(sendToAnalytics)
getLCP(sendToAnalytics)7. 最佳实践总结
7.1 优化策略 构建速度 启用缓存并行处理减少构建范围 输出质量 代码分割Tree Shaking压缩优化 运行时性能 懒加载预加载资源优化
7.2 持续优化
定期分析使用分析工具持续监控渐进式优化逐步实施优化策略团队协作建立优化规范和流程 8. 扩展阅读
Webpack 官方文档Web 性能优化指南前端性能优化实战 通过本文的系统讲解开发者可以全面掌握 Webpack 性能优化的各项策略与技巧。建议结合实际项目需求制定合理的优化方案持续提升应用性能。
