235 lines
7.9 KiB
JavaScript
235 lines
7.9 KiB
JavaScript
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// +----------------------------------------------------------------------
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// | CRMEB [ CRMEB赋能开发者，助力企业发展 ]
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// +----------------------------------------------------------------------
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// | Copyright (c) 2016~2021 https://www.crmeb.com All rights reserved.
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// +----------------------------------------------------------------------
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// | Licensed CRMEB并不是自由软件，未经许可不能去掉CRMEB相关版权
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// +----------------------------------------------------------------------
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// | Author: CRMEB Team <admin@crmeb.com>
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// +----------------------------------------------------------------------
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export const forEach = (arr, fn) => {
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if (!arr.length || !fn) return
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let i = -1
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let len = arr.length
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while (++i < len) {
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let item = arr[i]
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fn(item, i, arr)
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}
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}
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/**
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* @param {Array} arr1
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* @param {Array} arr2
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* @description 得到两个数组的交集, 两个数组的元素为数值或字符串
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*/
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export const getIntersection = (arr1, arr2) => {
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let len = Math.min(arr1.length, arr2.length)
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let i = -1
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let res = []
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while (++i < len) {
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const item = arr2[i]
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if (arr1.indexOf(item) > -1) res.push(item)
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}
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return res
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}
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/**
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* @param {Array} arr1
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* @param {Array} arr2
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* @description 得到两个数组的并集, 两个数组的元素为数值或字符串
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*/
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export const getUnion = (arr1, arr2) => {
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return Array.from(new Set([...arr1, ...arr2]))
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}
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/**
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* @param {Array} target 目标数组
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* @param {Array} arr 需要查询的数组
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* @description 判断要查询的数组是否至少有一个元素包含在目标数组中
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*/
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export const hasOneOf = (targetarr, arr) => {
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return targetarr.some(_ => arr.indexOf(_) > -1)
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}
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/**
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* @param {String|Number} value 要验证的字符串或数值
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* @param {*} validList 用来验证的列表
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*/
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export function oneOf (value, validList) {
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for (let i = 0; i < validList.length; i++) {
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if (value === validList[i]) {
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return true
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}
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}
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return false
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}
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/**
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* @param {Number} timeStamp 判断时间戳格式是否是毫秒
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* @returns {Boolean}
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*/
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const isMillisecond = timeStamp => {
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const timeStr = String(timeStamp)
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return timeStr.length > 10
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}
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/**
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* @param {Number} timeStamp 传入的时间戳
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* @param {Number} currentTime 当前时间时间戳
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* @returns {Boolean} 传入的时间戳是否早于当前时间戳
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*/
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const isEarly = (timeStamp, currentTime) => {
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return timeStamp < currentTime
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}
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/**
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* @param {Number} num 数值
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* @returns {String} 处理后的字符串
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* @description 如果传入的数值小于10，即位数只有1位，则在前面补充0
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*/
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const getHandledValue = num => {
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return num < 10 ? '0' + num : num
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}
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/**
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* @param {Number} timeStamp 传入的时间戳
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* @param {Number} startType 要返回的时间字符串的格式类型，传入'year'则返回年开头的完整时间
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*/
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const getDate = (timeStamp, startType) => {
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const d = new Date(timeStamp * 1000)
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const year = d.getFullYear()
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const month = getHandledValue(d.getMonth() + 1)
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const date = getHandledValue(d.getDate())
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const hours = getHandledValue(d.getHours())
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const minutes = getHandledValue(d.getMinutes())
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const second = getHandledValue(d.getSeconds())
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let resStr = ''
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if (startType === 'year') resStr = year + '-' + month + '-' + date + ' ' + hours + ':' + minutes + ':' + second
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else resStr = month + '-' + date + ' ' + hours + ':' + minutes
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return resStr
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}
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/**
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* @param {String|Number} timeStamp 时间戳
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* @returns {String} 相对时间字符串
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*/
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export const getRelativeTime = timeStamp => {
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// 判断当前传入的时间戳是秒格式还是毫秒
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const IS_MILLISECOND = isMillisecond(timeStamp)
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// 如果是毫秒格式则转为秒格式
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if (IS_MILLISECOND) Math.floor(timeStamp /= 1000)
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// 传入的时间戳可以是数值或字符串类型，这里统一转为数值类型
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timeStamp = Number(timeStamp)
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// 获取当前时间时间戳
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const currentTime = Math.floor(Date.parse(new Date()) / 1000)
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// 判断传入时间戳是否早于当前时间戳
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const IS_EARLY = isEarly(timeStamp, currentTime)
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// 获取两个时间戳差值
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let diff = currentTime - timeStamp
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// 如果IS_EARLY为false则差值取反
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if (!IS_EARLY) diff = -diff
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let resStr = ''
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const dirStr = IS_EARLY ? '前' : '后'
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// 少于等于59秒
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if (diff <= 59) resStr = diff + '秒' + dirStr
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// 多于59秒，少于等于59分钟59秒
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else if (diff > 59 && diff <= 3599) resStr = Math.floor(diff / 60) + '分钟' + dirStr
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// 多于59分钟59秒，少于等于23小时59分钟59秒
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else if (diff > 3599 && diff <= 86399) resStr = Math.floor(diff / 3600) + '小时' + dirStr
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// 多于23小时59分钟59秒，少于等于29天59分钟59秒
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else if (diff > 86399 && diff <= 2623859) resStr = Math.floor(diff / 86400) + '天' + dirStr
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// 多于29天59分钟59秒，少于364天23小时59分钟59秒，且传入的时间戳早于当前
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else if (diff > 2623859 && diff <= 31567859 && IS_EARLY) resStr = getDate(timeStamp)
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else resStr = getDate(timeStamp, 'year')
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return resStr
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}
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/**
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* @returns {String} 当前浏览器名称
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*/
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export const getExplorer = () => {
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const ua = window.navigator.userAgent
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const isExplorer = (exp) => {
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return ua.indexOf(exp) > -1
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}
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if (isExplorer('MSIE')) return 'IE'
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else if (isExplorer('Firefox')) return 'Firefox'
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else if (isExplorer('Chrome')) return 'Chrome'
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else if (isExplorer('Opera')) return 'Opera'
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else if (isExplorer('Safari')) return 'Safari'
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}
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/**
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* @description 绑定事件 on(element, event, handler)
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*/
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export const on = (function () {
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if (document.addEventListener) {
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return function (element, event, handler) {
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if (element && event && handler) {
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element.addEventListener(event, handler, false)
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}
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}
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} else {
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return function (element, event, handler) {
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if (element && event && handler) {
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element.attachEvent('on' + event, handler)
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}
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}
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}
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})()
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/**
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* @description 解绑事件 off(element, event, handler)
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*/
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export const off = (function () {
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if (document.removeEventListener) {
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return function (element, event, handler) {
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if (element && event) {
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element.removeEventListener(event, handler, false)
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}
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}
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} else {
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return function (element, event, handler) {
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if (element && event) {
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element.detachEvent('on' + event, handler)
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}
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}
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}
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})()
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/**
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* 判断一个对象是否存在key，如果传入第二个参数key，则是判断这个obj对象是否存在key这个属性
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* 如果没有传入key这个参数，则判断obj对象是否有键值对
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*/
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export const hasKey = (obj, key) => {
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if (key) return key in obj
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else {
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let keysArr = Object.keys(obj)
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return keysArr.length
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}
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}
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/**
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* @param {*} obj1 对象
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* @param {*} obj2 对象
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* @description 判断两个对象是否相等，这两个对象的值只能是数字或字符串
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*/
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export const objEqual = (obj1, obj2) => {
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const keysArr1 = Object.keys(obj1)
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const keysArr2 = Object.keys(obj2)
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if (keysArr1.length !== keysArr2.length) return false
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else if (keysArr1.length === 0 && keysArr2.length === 0) return true
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/* eslint-disable-next-line */
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else return !keysArr1.some(key => obj1[key] != obj2[key])
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}
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/**
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* 去除乘法计算出现多位小数
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* @param arg1返回值，arg2乘以的参数
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*/
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export const accMul = (arg1, arg2) => {
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var m=0,s1=arg1.toString(),s2=arg2.toString();
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try{m+=s1.split(".")[1].length}catch(e){}
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try{m+=s2.split(".")[1].length}catch(e){}
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return Number(s1.replace(".",""))*Number(s2.replace(".",""))/Math.pow(10,m)
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}
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