关于vue.js:vue全局filter

export function timestampFormatFilter(time, format) {  if (!time) {    return '无'  }  format = format || 'yyyy-MM-dd HH:mm:ss'  const date = new Date(time)  const map = {    'M+': date.getMonth() + 1,    'd+': date.getDate(),    'h+': date.getHours() % 12 === 0 ? 12 : date.getHours() % 12,    'H+': date.getHours(),    'm+': date.getMinutes(),    's+': date.getSeconds()  }  if (/(y+)/.test(format)) {    format = format.replace(RegExp.$1, (date.getFullYear() + '').substr(4 - RegExp.$1.length))  }  for (var key in map) {    if (new RegExp(`(${key})`).test(format)) {      format = format.replace(RegExp.$1, RegExp.$1.length === 1 ? map[key] : numHelper(map[key]))    }  }  return format}function numHelper(num) {  if (num < 10) {    return '0' + num  } else {    return num + ''  }}

在main.js 中设置

import * as filters from './filters' // global filtersObject.keys(filters).forEach(key => {  Vue.filter(key, filters[key])})

dom中就能够全局应用了