js 输入多个手机号码正则验证

handleChange() {
  var myreg = /^1(3|4|5|6|7|8|9)\d{9}$/;
  var str = this.phone;
  var strs = new Array() ;
  strs = str.split(",") ;
  console.log('strs',strs);
  //alert(strs);
  for (let i=0;i<strs.length ;i++ ) { 
    if(!myreg.test(strs[i])){
      alert('第'+(i+1)+'个手机号码格式不正确!');
      //frm.strPhone.focus();
      return;
    }
  }    
}