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debounce-save

v1.0.8

Published

autoSave debounce save

Downloads

7

Readme

安装

npm install debounce-save -S or yarn add debounce-save

触发自动保存的场景

  • 数据改发生变时
  • 用户关闭页面时
  • 组件卸载时

live demo

demo

注意事项

autosave 提供了save debouncedSave cancel ...api不要直接调用 ajax 请求 -> 破坏 autoSave 内部的生态系统

  • 例如
    • 用户操作 修改了本次周报 切换 上周周报
    • state 的数据变成了上周
    • 因为 debounced 是延时执行,触发时 -> 获取数据是上周的数据

解决方案 - 用户切换时应该马上触发保存 api save

入参


     // 默认参数
              wait: 2000,                   // default 防抖时间
              onSave: null,                 // 自动保存事件(ajax)
              onBeforeSave: null,           // 调用onSave 之前调用
              saveMessage: '确定要离开吗?',   // 提示语
              leading: false,               // 超时前调用
              maxWait: 1,                   // 延迟的最长时间
              trailing: true,               // 超时后调用

api

// 暴露的debounced save 供数据发生改变时调用
debouncedSave

// 直接调用save的方法
save

// 取消事件
cancel

// 清空
flush

// 退出时的事件(组件销毁时 | 直接调用保存事件)
exit

Usage

import React, { Component } from 'react'
import autoSave from 'debounce-save'

export default class AutoSave extends Component {
  constructor(props) {
    super(props)
    this.autoSave = autoSave({
      onSave: () => {
        setTimeout(() => {
          this.setState({ log: `value = ${this.state.value},  success` })
        }, 0)
      }
    })
  }
  state = {
    value: '',
    log: 'log'
  }
  /**
   * autoSave({})
   * return ->
   *         debouncedSave
   *         save
   */

  render() {
    return (
      <div>
        <p>{this.state.log}</p>
        <input
          value={this.state.value}
          onChange={({ target: { value } }) => {
            this.setState({ value }, () => this.autoSave.debouncedSave())
          }}
        />
      </div>
    )
  }
}

demo

  • cd _demo
  • npm i
  • npm run server