摘要：項目中工具函數，我們通常會添加到的原型中，這樣就實現了全局函數只需要將綁定的這段引入到即可。對象中可以有兩個屬性和是布爾值，為真時，不會對獲取到的值進行解碼。參數可選，可以有以下屬性字符串字符串數值或日期對象布爾值。持續更新參考工具函數

import Vue from "vue"
Vue.prototype.$tools = function （）{}

只需要將綁定的這段js引入到main.js即可。綁定方法十分簡單，這里不再詳細說明

下面列舉幾個常用的工具函數

Vue.prototype.$dateFormat = function (date, fmt = "YYYY-MM-DD HH:mm:ss") {
  if (!date) {
    return ""
  }
  if (typeof date === "string") {
    date = new Date(date.replace(/-/g, "/"))
  }
  if (typeof date === "number") {
    date = new Date(date)
  }
  var o = {
    "M+": date.getMonth() + 1,
    "D+": date.getDate(),
    "h+": date.getHours() % 12 === 0 ");"H+": date.getHours(),
    "m+": date.getMinutes(),
    "s+": date.getSeconds(),
    "q+": Math.floor((date.getMonth() + 3) / 3),
    "S": date.getMilliseconds()
  }
  var week = {
    "0": "u65e5",
    "1": "u4e00",
    "2": "u4e8c",
    "3": "u4e09",
    "4": "u56db",
    "5": "u4e94",
    "6": "u516d"
  }
  if (/(Y+)/.test(fmt)) {
    fmt = fmt.replace(RegExp.$1, (date.getFullYear() + "").substr(4 - RegExp.$1.length))
  }
  if (/(E+)/.test(fmt)) {
    fmt = fmt.replace(RegExp.$1, ((RegExp.$1.length > 1) ");$1.length > 2 ");"u661fu671f" : "u5468") : "") + week[date.getDay() + ""])
  }
  for (var k in o) {
    if (new RegExp("(" + k + ")").test(fmt)) {
      fmt = fmt.replace(RegExp.$1, (RegExp.$1.length === 1) ");"00" + o[k]).substr(("" + o[k]).length)))
    }
  }
  return fmt
}

import axios from "axios"
// 跨域請求，允許保存cookieaxios.defaults.withCredentials = true
// HTTPrequest攔截,對發出的請求數據進行統一操作
axios.interceptors.request.use(config => {
  // 對請求參數做些什么
  return config
}, error => {
  // 對請求錯誤做些什么
  console.log("err" + error) // for debug
  return Promise.reject(error)
})
// HTTPresponse攔截，對收到的數據進行統一操作
axios.interceptors.response.use(data => {
  // 對返回數據進行操作
  return data
}, error => {
  return Promise.reject(new Error(error))
})
Vue.prototype.$ajax = function ajax (url = "", data = {}, type = "GET") {
    type = type.toUpperCase()
  return new Promise(function (resolve, reject) {
    let promise
    if (type === "GET") {
      let dataStr = "" // 數據拼接字符串
      Object.keys(data).forEach(key => {
        dataStr += key + "=" + data[key] + "&"
      })
      if (dataStr !== "") {
        dataStr = dataStr.substr(0, dataStr.lastIndexOf("&"))
        url = url + ""); + dataStr
      }
      // 發送get請求
      promise = axios.get(url)
    } else {
    //  發送post
      promise = axios.post(url, data)
    }
    promise.then(response => {
      resolve(response.data)
    }).catch(error => {
      reject(error)
    })
  })
}

 numberComma用于分割數字，默認為3位分割，一般用于格式化金額。

Vue.prototype.$numberComma = function (source, length = 3) {
  source = String(source).split(".")
  source[0] = source[0].replace(new RegExp("(d)("); + length + "})+$)", "ig"), "$1,")
  return source.join(".")
}

numberPad用于按照位數補0,默認為2

Vue.prototype.$numberPad = function (source, length = 2) {
  let pre = ""
  const negative = source < 0
  const string = String(Math.abs(source))
  if (string.length < length) {
    pre = (new Array(length - string.length + 1)).join("0")
  }
  return (negative ");"-" : "") + pre + string
}

Vue.prototype.$numberRandom = function (min, max) {
  return Math.floor(Math.random() * (max - min + 1) + min)
}

1.$cookie.get(name, [options])

獲取 cookie 值。options 參數可選，取值如下： converter 轉換函數。如果所獲取的 cookie 有值，會在返回前傳給 converter 函數進行轉換。 選項對象。對象中可以有兩個屬性：converter 和 raw. raw 是布爾值，為真時，不會對獲取到的 cookie 值進行 URI 解碼。 注：如果要獲取的 cookie 鍵值不存在，則返回 undefined. 2.cookie.remove(name, [options]) 移除指定的 cookie.

const Cookie = {}
var decode = decodeURIComponent
var encode = encodeURIComponent
Cookie.get = function (name, options) {
  validateCookieName(name)
  if (typeof options === "function") {
    options = {
      converter: options
    }
  } else {
    options = options || {}
  }
  var cookies = parseCookieString(document.cookie, !options["raw"])
  return (options.converter || same)(cookies[name])
}
Cookie.set = function (name, value, options) {
  validateCookieName(name)

  options = options || {}
  var expires = options["expires"]
  var domain = options["domain"]
  var path = options["path"]

  if (!options["raw"]) {
    value = encode(String(value))
  }
  var text = name + "=" + value

  // expires
  var date = expires
  if (typeof date === "number") {
    date = new Date()
    date.setDate(date.getDate() + expires)
  }
  if (date instanceof Date) {
    text += " expires=" + date.toUTCString()
  }
  // domain
  if (isNonEmptyString(domain)) {
    text += " domain=" + domain
  }
  // path
  if (isNonEmptyString(path)) {
    text += " path=" + path
  }
  // secure
  if (options["secure"]) {
    text += " secure"
  }
  document.cookie = text
  return text
}
Cookie.remove = function (name, options) {
  options = options || {}
  options["expires"] = new Date(0)
  return this.set(name, "", options)
}
function parseCookieString (text, shouldDecode) {
  var cookies = {}
  if (isString(text) && text.length > 0) {
    var decodeValue = shouldDecode ");for (var i = 0, len = cookieParts.length; i < len; i++) {
      cookieNameValue = cookieParts[i].match(/([^=]+)=/i)
      if (cookieNameValue instanceof Array) {
        try {
          cookieName = decode(cookieNameValue[1])
          cookieValue = decodeValue(cookieParts[i]
            .substring(cookieNameValue[1].length + 1))
        } catch (ex) {
          console.log(ex)
        }
      } else {
        cookieName = decode(cookieParts[i])
        cookieValue = ""
      }
      if (cookieName) {
        cookies[cookieName] = cookieValue
      }
    }
  }
  return cookies
}
function isString (o) {
  return typeof o === "string"
}
function isNonEmptyString (s) {
  return isString(s) && s !== ""
}
function validateCookieName (name) {
  if (!isNonEmptyString(name)) {
    throw new TypeError("Cookie name must be a non-empty string")
  }
}
function same (s) {
  return s
}
Vue.prototype.$cookie = Cookie

 ```
  $dateFormat(url) 返回搜索參數的鍵值對對象
  例： getsearch("http://www.longfor.com");

Vue.prototype.$getsearch = function (url) {

var obj = {} url.replace(/([^");

#小數截取固定位數
// 默認保留一位小數,并下舍入
      $decimalNum 截取固定位數的小數
      /**@param
      number 處理的小數
      number 保留的小數位數
      number 0 對小數進行下舍入；1 四舍五入；2 上舍入
      */
      例： $decimalNum(2.376186679,3,)
      // 2.376

    Vue.prototype.$decimalNum = function (source, length = 1, type = 0) {
    length = Math.pow(10, length)
    if (type === 2) {
      return Math.ceil(source * length) / length
    } else if (type === 1) {
      return Math.round(source * length) / length
    } else {
      return Math.floor(source * length) / length
    }
  }

。。。持續更新

參考：vux工具函數