Phone mask with Vue.js

Vue_phone_mask.js

import Vue from "vue"

Vue.directive('phone', {
    bind(el) {  
      el.oninput = function(e) {
        if (!e.isTrusted) {
          return
        }
  
        const x = this.value.replace(/\D/g, '').match(/(\d{0,1})(\d{0,3})(\d{0,3})(\d{0,4})/)

        if (!x[2] && x[1] !== '') {
          this.value = x[1] === '8' ? x[1] : '8' + x[1]
        } else {
            this.value = !x[3] ? x[1] + x[2] : x[1] + '(' + x[2] + ') ' + x[3] + (x[4] ? '-' + x[4] : '')
        }
      }
    },
})

Это на случай если происходит событие onpaste и вставляется номер, который начинается с 7/+7.

Vue.directive('phone', {
    bind(el) { 
      function replaceNumberForInput(value) {
        let val = ''
        const x = value.replace(/\D/g, '').match(/(\d{0,1})(\d{0,3})(\d{0,3})(\d{0,4})/)

        if (!x[2] && x[1] !== '') {
          val = x[1] === '8' ? x[1] : '8' + x[1]
        } else {
          val = !x[3] ? x[1] + x[2] : x[1] + '(' + x[2] + ') ' + x[3] + (x[4] ? '-' + x[4] : '')
        }

        return val
      }

      function replaceNumberForPaste(value) {
        const r = value.replace(/\D/g, '')
        let val = r
        if (val.charAt(0) === '7') {
          val = '8' + val.slice(1)
        }
        return replaceNumberForInput(val)
      }

      el.oninput = function(e) {
        if (!e.isTrusted) {
          return
        }
        this.value = replaceNumberForInput(this.value)
      }

      el.onpaste = function() {
        setTimeout(() => {
          const pasteVal = el.value
          this.value = replaceNumberForPaste(pasteVal)
        })
      }

    }
})

const x = this.value.replace(/\D/g, '').match(/(\d{0,1})(\d{0,3})(\d{0,3})(\d{0,2})(\d{0,2})/) x[1] = '+7' this.value = !x[3] ? x[1] + ' (' + x[2] : x[1] + ' (' + x[2] + ') ' + x[3] + (x[4] ? '-' + x[4] : '') + (x[5] ? '-' + x[5] : '')

+7 (999) 999-99-99 - я думаю в таком виде, мы чаще видим маски