HouYunFei
fb79a15508
- 添加 sections 定义文件，包含性能优化各领域分类 - 添加规则模板文件，规范文档结构和标签定义 - 添加异步操作优化规则，包括防止瀑布流、并行化、延迟等待等 - 添加包大小优化规则，包括避免桶式导入、动态导入、预加载等 - 添加服务端性能优化规则，包括 API 路
654 B
654 B
title, impact, impactDescription, tags
| title | impact | impactDescription | tags |
|---|---|---|---|
| Promise.all() for Independent Operations | CRITICAL | 2-10× improvement | async, parallelization, promises, waterfalls |
Promise.all() for Independent Operations
When async operations have no interdependencies, execute them concurrently using Promise.all().
Incorrect (sequential execution, 3 round trips):
const user = await fetchUser()
const posts = await fetchPosts()
const comments = await fetchComments()
Correct (parallel execution, 1 round trip):
const [user, posts, comments] = await Promise.all([
fetchUser(),
fetchPosts(),
fetchComments()
])