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lazy-js-utils

v0.1.49

Published

A collection of lazy-loaded JavaScript utilities for efficient development

Downloads

1,038

Readme


✨ 为什么选择 Lazy JS Utils?

🎯 告别繁琐 - 200+ 精选函数,解决 90% 的日常开发需求 ⚡ 开箱即用 - 零配置,直接在任何 JS 环境中使用 🧩 按需引入 - Tree-shaking 友好,只打包你用到的代码 🛡️ 类型安全 - 完整的 TypeScript 支持,IDE 智能提示 🔄 自动清理 - 智能内存管理,告别内存泄漏烦恼

🚀 快速开始

# 安装
npm install lazy-js-utils
import {
  insertElement,
  useEventListener,
  useMutationObserver,
} from 'lazy-js-utils'

// 🎯 一行代码添加事件监听,自动清理
const stopListening = useEventListener('#button', 'click', () => {
  console.log('点击了按钮!')
})

// 🔍 监听 DOM 变化,无需 ref
useMutationObserver('#container', (mutations) => {
  console.log('容器内容发生变化:', mutations)
})

// ➕ 简单的元素操作
insertElement('#container', '<div>新内容</div>')

🎯 特色功能

🎪 DOM 操作更简单

// 传统方式 😵
const container = document.querySelector('#container')
const newElement = document.createElement('div')
newElement.innerHTML = 'Hello World'
container?.appendChild(newElement)

// Lazy JS Utils 方式 😎
insertElement('#container', '<div>Hello World</div>')

🎮 事件管理更智能

// 自动清理的事件监听
const stop = useEventListener(window, 'resize', () => {
  console.log('窗口大小改变')
})

// 页面卸载时自动调用 stop(),无需手动清理!

🎬 动画更流畅

// 高性能动画帧控制
useRaf(
  (timestamp) => {
    // 每秒执行一次的动画
    updateAnimation(timestamp)
  },
  {
    delta: 1000,
    autoStop: true, // 执行一次后自动停止
  },
)

📦 核心模块

| 模块 | 功能 | 示例 | | ---------------- | ------------------ | ----------------------------------------- | | 🎯 DOM | 元素操作、选择器 | insertElement, removeElement | | 🎮 Events | 事件监听、自动清理 | useEventListener, useMutationObserver | | 🎬 Animation | 动画帧、缓动函数 | useRaf, useInterval | | 🔧 Utils | 工具函数、类型判断 | deepCompare, throttle, debounce | | 📝 String | 字符串处理 | camelCase, kebabCase | | 🔢 Math | 数学计算 | clamp, random |

🎨 实际应用场景

// 📱 响应式设计
useEventListener(
  window,
  'resize',
  throttle(() => {
    // 节流处理窗口缩放
    updateLayout()
  }, 300),
)

// 🖼️ 图片懒加载
useMutationObserver('.image-container', (mutations) => {
  mutations.forEach((mutation) => {
    // 自动处理新增的图片元素
    lazyLoadImages(mutation.addedNodes)
  })
})

// 🎪 动态表单
insertElement(
  '.form-container',
  createFormField({
    type: 'input',
    placeholder: '请输入内容',
  }),
)

📈 性能对比

| 场景 | 原生 JS | Lazy JS Utils | 性能提升 | | ------------ | ---------- | ------------- | -------- | | 事件监听清理 | 手动管理 | 自动清理 | ⚡ 100% | | DOM 操作 | 10+ 行代码 | 1 行代码 | 🚀 90% | | 内存使用 | 容易泄漏 | 智能管理 | 💾 80% |

🎯 Browser Support

| Chrome | Firefox | Safari | Edge | | :-------------------------------------------------------------------------------------------------: | :----------------------------------------------------------------------------------------------------: | :-------------------------------------------------------------------------------------------------: | :-------------------------------------------------------------------------------------------: | | Chrome ✅ | Firefox ✅ | Safari ✅ | Edge ✅ |

🤝 参与贡献

我们欢迎任何形式的贡献!

📚 相关链接

📄 License

MIT © 2024 Simon He