hawx1993

 
//获取当前时间
var date=new Date();
//将date设置为过去的时间
date.setTime(date.getTime()-10000);
//将userId这个cookie删除
document.cookie="userId=828; expires="+date.toGMTString();
 

hawx1993

.clearfix:after{
    content: ".";
    display: block;
    height: 0;
    clear: both;
    visibility: hidden;
}
.clearfix{
    *zoom:1;
}

hawx1993

//bind
 function bind(fn, ctx) {
    return function (a) {
      var l = arguments.length;
      return l ? l > 1 ? fn.apply(ctx, arguments) : fn.call(ctx, a) : fn.call(ctx);
    };
  }
  
  
  //entend

hawx1993

var isJS = function (file) { return /\.js(\?[^.]+)?$/.test(file); };

hawx1993

var _toString = Object.prototype.toString;

/**
 * Strict object type check. Only returns true
 * for plain JavaScript objects.
 */
function isPlainObject (obj) {
  return _toString.call(obj) === '[object Object]'
}

hawx1993

/*
 * @Author: trigkit4
 * @Date: 2018-09-18 10:07:05
 */
import React, { Component, ComponentType } from 'react';
import { computed, action, observable } from 'mobx';
import { observer } from 'mobx-react';
import _ from 'lodash';

type BuildContainerOptions<T> = {

hawx1993

const SUBSTRING_TO_FIND = '-precache-';

export default async function deleteWorkboxPreCaches(
  filename: string,
  substringToFind: string = SUBSTRING_TO_FIND,
) {
  const cacheNames = await caches.keys();

  const cacheNamesToDelete = cacheNames.filter(cacheName => {
    return cacheName.includes(substringToFind);

hawx1993

// 数组去重对象
var arr = [
  { id: 1, city: "南京" },
  { id: 2, city: "南京" },
  { id: 3, city: "杭州" },
  { id: 4, city: "广州" },
];

var newArr = arr.reduce((prev, cur) => {
  obj[cur.city] ? "" : (obj[cur.city] = true && prev.push(cur));

hawx1993

import { useCallback, useEffect, useRef } from 'react'

function useIsMounted() {
  const isMounted = useRef(false)

  useEffect(() => {
    isMounted.current = true

    return () => {
      isMounted.current = false

hawx1993

import { useCallback, useState } from 'react'

export type MapOrEntries<K, V> = Map<K, V> | [K, V][]

// Public interface
export interface Actions<K, V> {
  set: (key: K, value: V) => void
  setAll: (entries: MapOrEntries<K, V>) => void
  remove: (key: K) => void
  reset: Map<K, V>['clear']