让你事半功倍的JS utils工具函数3

export const getCookie = (k) => {
  const res = RegExp('(^|; )' + encodeURIComponent(k) + '=([^;]*)').exec(document.cookie)
  return res && res[2]
}

export function setCookie(name, value, expriesDays, encode = false) {
  var Days = expriesDays || 10
  var exp = new Date()
  exp.setTime(exp.getTime() + Days * 24 * 60 * 60 * 1000)
  const val = encode ? escape(value) : value
  document.cookie = name + '=' + val + ';domain=zhuanzhuan.com;path=/;expires=' + exp.toUTCString()
}

const prefix = '_XXX_'
export function getStorage(key) {
  const content = sessionStorage.getItem(`${prefix}${key}`)
  if (content) {
    try {
      const params = JSON.parse(content)
      const expires = params.expires
      // 未设置过期 及 未过期
      if (!expires || (expires && Date.now() <= expires)) {
        return params.data
      }
    } catch (e) {
      console.log(e)
    }
  }
}
export function setStorage(key, data = {}, expires) {
  try {
    const params = { data }
    if (expires) {
      params.expires = expires
    }
    sessionStorage.setItem(`${prefix}${key}`, JSON.stringify(params))
  } catch (e) {
    console.log(e)
  }
}

export function round(number, n) {
    n = n ? parseInt(n) : 0
    if (n <= 0) return Math.round(number)
    number = Math.round(number * Math.pow(10, n)) / Math.pow(10, n)
    return number
}

export function toThousands(num) {
  return num && num.toString()
    .replace(/\d+/, function(s){
         return s.replace(/(\d)(?=(\d{3})+$)/g, '$1,')
     })
}

export function random(min, max) {
  return Math.floor(Math.random() * (max - min + 1) + min)
}

export function hideMobile(mobile) {
  return mobile.replace(/^(\d{3})\d{4}(\d{4})$/, "$1****$2")
}

export function checkPassWord(str) {
    let level = 0;
    if (str.length < 6) {
        return level
    };
    if (/[0-9]/.test(str)) {
        level++
    };
    if (/[a-z]/.test(str)) {
        level++
    };
    if (/[A-Z]/.test(str)) {
        level++
    };
    if(/\W/.test(str)){
        level++
    }
    return level
}

export function randomColor() {
  return `rgb(${this.random(0, 255)}, ${this.random(0, 255)}, ${this.random(0, 255)})`
}

export function replaceAll(s0, s1, s2){
  return s0.replace(new RegExp(s1, "gm"), s2);
}

export function compareVersion(v1, v2) {
  var s1 = v1.split(".").map(v => parseInt(v));
  var s2 = v2.split(".").map(v => parseInt(v));
  var len1 = s1.length, len2 = s2.length, commonLen = Math.min(len1, len2);
  for (var i = 0; i < commonLen; ++i) {
    if (seq1[i] != seq2[i])
      return seq1[i]<seq2[i] ? -1 : 1;
  }
  return len1 === len2 ? 0 : (len1 < len2 ? -1 : 1);
}

const objectToQueryString = (paramObj) => {
  const tmpArray = []
  // 特殊字符转义
  const filter = (str) => {
    str += '' // 隐式转换
    str = str.replace(/%/g, '%25')
    str = str.replace(/\+/g, '%2B')
    str = str.replace(/ /g, '%20')
    str = str.replace(/\//g, '%2F')
    str = str.replace(/\?/g, '%3F')
    str = str.replace(/&/g, '%26')
    str = str.replace(/\=/g, '%3D')
    str = str.replace(/#/g, '%23')
    return str
  }
  for (const attr in paramObj) {
    tmpArray.push(`${attr}=${filter(paramObj[attr])}`)
  }
  return tmpArray.join('&')
}

export function debounce(fn, delay) {
  delay = delay || 1000;
  let timer = null;
  return function () {
    let context = this;
    let arg = arguments;
    if (timer) {
      clearTimeout(timer);
    }
    timer = setTimeout(() => {
      fn.apply(context, arg);
    }, delay);
  };
}

export function throttle(fn, delay = 300) {
  let timer = null;
  return function () {
    let context = this;
    let args = arguments;
    if (!timer) {
      timer = setTimeout(function () {
        fn.apply(context, args);
        clearTimeout(timer);
      }, delay);
    }
  };
}