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SKILL.md
Bundle Optimization
ASecurity使用 Rollup Visualizer 分析产物,并通过拆包 (Code Splitting) 和 Tree Shaking 减少首屏体积。
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- Added February 7, 2026
Security analysis
96/100- Installs packages at runtime which could introduce malicious dependencies
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[](https://www.skillsdirectory.com/skills/tencentblueking-bundle-optimization)---
id: eng-bundle-opt
name: Vite 构建产物体积优化
category: engineering
description: 使用 Rollup Visualizer 分析产物,并通过拆包 (Code Splitting) 和 Tree Shaking 减少首屏体积。
tags: [vite, rollup, performance, optimization]
updated_at: 2026-01-09
---
# Vite 构建产物体积优化
当首屏加载慢 (FCP > 1.5s) 时,通常需要检查 JS Bundle 的体积。
## 1. 产物分析 (Visualizer)
首先"看见"哪些包最大。
```bash
npm install rollup-plugin-visualizer -D
```
## 2. 常用优化策略
### 路由懒加载 (Route Lazy Loading)
**这是收益最大的优化点**。
❌ `import UserList from './views/UserList.vue'`
✅ `component: () => import('./views/UserList.vue')`
### 依赖分包 (Manual Chunks)
将大型库(ECharts, bkui-vue)单独打包,避免 vendor hash 频繁变化。
### 按需引入 (Tree Shaking)
❌ `import _ from 'lodash'`
✅ `import debounce from 'lodash-es/debounce'`
### Gzip 压缩
```bash
npm install vite-plugin-compression -D
```
## 3. 完整配置模版
> 📦 获取完整 vite.config.ts 配置:`skill://bundle-optimization/assets/vite.config.optimization.ts`
---
## 📦 可用资源
- `skill://bundle-optimization/assets/vite.config.optimization.ts`
> 根据 SKILL.md 中的 IF-THEN 规则判断是否需要加载
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