Like the title, how did you do it? I searched a lot online, but I don’t know why it doesn’t work

var isChinaMobile = /^134[0-8]\d{7}$|^(?:13[5-9]|147|15[0-27-9]|178|18[2-478])\d{8}$/; //移动方面最新答复
var isChinaUnion = /^(?:13[0-2]|145|15[56]|176|18[56])\d{8}$/; //向联通微博确认并未回复
var isChinaTelcom = /^(?:133|153|177|18[019])\d{8}$/; //1349号段 电信方面没给出答复，视作不存在
var isOtherTelphone = /^170([059])\d{7}$/;//其他运营商
var utils = {
 checkMobile: function(telphone){
  telphone = this.trim(telphone);
  if(telphone.length !== 11){
   return this.setReturnJson(false, '未检测到正确的手机号码');
  }
  else{
   if(isChinaMobile.test(telphone)){
    return this.setReturnJson(true, '移动', {name: 'ChinaMobile'});
   }
   else if(isChinaUnion.test(telphone)){
    return this.setReturnJson(true, '联通', {name: 'ChinaUnion'});
   }
   else if(isChinaTelcom.test(telphone)){
    return this.setReturnJson(true, '电信', {name: 'ChinaTelcom'});
   }
   else if(isOtherTelphone.test(telphone)){
    var num = isOtherTelphone.exec(telphone);
    return this.setReturnJson(true, '', {name: ''});
   }
   else{
    return this.setReturnJson(false, '未检测到正确的手机号码');
   }
  }
 },
 setReturnJson: function(status, msg, data){
  if(typeof status !== 'boolean' && typeof status !== 'number'){
   status = false;
  }
  if(typeof msg !== 'string'){
   msg = '';
  }
  return {
   'status': status,
   'msg': msg,
   'data': data
  };
 }
}