使用Javascript验证电话号码

时间:2014-10-06 06:57:43

标签: javascript html validation phone-number

我正在使用包含多个字段和提交按钮的网络表单。单击该按钮时,我将验证是否已填写所需的文本框,并且电话号码的格式是否正确。我只能接受7或10位数的电话号码,但是(,),( - )等字符是可以接受的。如果此框为空或电话号码不是正确的格式(不是7或10个数字长,不是数字)或者是空白,我应该在文本框周围添加红色边框。在用户纠正错误之前,此边界应保持不变。

我无法让它正常工作。我已经尝试了几种不同的方法来做这件事,但是已经有几种不同类型的错误。一种方法似乎工作,但红色边框只显示一秒钟然后消失,文本框中的值被重置。

这是我的代码和我创建的jsfiddle的链接:

使用Javascript:

<script type="text/javascript">
    function validateForm() {
        return checkPhone();
    }
    function checkPhone() {
        var phone = document.forms["myForm"]["phone"].value;
        var phoneNum = /^\(?([0-9]{3})\)?[-. ]?([0-9]{3})[-. ]?([0-9]{4})$/; 
            if(phone.value.match(phoneNum)) {
                return true;
            }
            else {
                document.getElementById("phone").className = document.getElementById("phone").className + " error";
                return false;
            }
        }
</script>

HTML:

<form name="myForm" onsubmit = "return validateForm()">
    Phone Number: <input type="text" id="phone"><br>
</form>

的jsfiddle:

http://jsfiddle.net/mkdsjc0p/

10 个答案:

答案 0 :(得分:11)

至于你的正则表达式,我想它应该是

^\+{0,2}([\-\. ])?(\(?\d{0,3}\))?([\-\. ])?\(?\d{0,3}\)?([\-\. ])?\d{3}([\-\. ])?\d{4}

但总的来说,推定是不正确的,因为人们可能会输入类似的东西 ++ 44 20 1234 56789或+44(0)1234 567890 做这样的事情会更好

var phone = document.forms["myForm"]["phone"].value;
var phoneNum = phone.replace(/[^\d]/g, '');
if(phoneNum.length > 6 && phoneNum.length < 11) {  return true;  }

这将确保输入的值有7到10个数字,但格式是什么。但是你必须考虑数字的最大长度可能超过10,如上例所示。

答案 1 :(得分:4)

function telephoneCheck(str) {
  var a = /^(1\s|1|)?((\(\d{3}\))|\d{3})(\-|\s)?(\d{3})(\-|\s)?(\d{4})$/.test(str);
  alert(a);
}
telephoneCheck("(555) 555-5555");

其中str可以是以下任何格式: 555-555-5555 (555)555-5555 (555)555-5555 555 555 5555 5555555555 1 555 555 5555

答案 2 :(得分:2)

试试这个  我在工作。

<form>
<input type="text" name="mobile" pattern="[1-9]{1}[0-9]{9}" title="Enter 10 digit mobile number" placeholder="Mobile number" required>
<button>
Save
</button>
</form>
 

https://jsfiddle.net/guljarpd/12b7v330/

答案 3 :(得分:1)

<html>
<title>Practice Session</title>
<body>           
<form name="RegForm" onsubmit="return validate()" method="post">  
<p>Name: <input type="text" name="Name"> </p><br>        
<p>Contact: <input type="text" name="Telephone"> </p><br>   
<p><input type="submit" value="send" name="Submit"></p>          
</form> 
</body>
<script> 
function validate()                                    
{ 
var name = document.forms["RegForm"]["Name"];                
var phone = document.forms["RegForm"]["Telephone"];  
if (name.value == "")                                  
{ 
window.alert("Please enter your name."); 
name.focus();
return false;
}
else if(isNaN(name.value) /*"%d[10]"*/)
{
alert("name confirmed");
}
else{ 
window.alert("please enter character"); 
}   
if (phone.value == "")                           
{ 
window.alert("Please enter your telephone number."); 
phone.focus();
return false; 
} 
else if(!isNaN(phone.value) /*phone.value == isNaN(phone.value)*/)
{
alert("number confirmed");
}
else{
window.alert("please enter numbers only");
}   
}
</script> 
</html>

答案 4 :(得分:1)

使用Java脚本中的正则表达式验证电话号码。

在印度,电话是10位数字,起始数字是6、7、8和9。

JavaScript和HTML代码:

function validate()
{
  var text = document.getElementById("pno").value;
  var regx = /^[6-9]\d{9}$/ ;
  if(regx.test(text))
    alert("valid");
  else
    alert("invalid");
}
<html>
    <head>
        <title>JS compiler - knox97</title>
  </head>
  <body>
  <input id="pno" placeholder="phonenumber" type="text" > 
    </br></br>
    <button onclick="validate()" type="button">submit</button>
  </body>
</html>

答案 5 :(得分:0)

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<link rel="stylesheet" type="text/css" href="../Homepage-30-06-2016/Css.css" >
<title>Form</title>

<script type="text/javascript">

        function isChar(evt) {
            evt = (evt) ? evt : window.event;
            var charCode = (evt.which) ? evt.which : evt.keyCode;
            if (charCode > 47 && charCode < 58) {

                document.getElementById("error").innerHTML = "*Please Enter Your Name Only";
                document.getElementById("fullname").focus();
                document.getElementById("fullname").style.borderColor = 'red';
                return false;
            }
            else {
                document.getElementById("error").innerHTML = "";
                document.getElementById("fullname").style.borderColor = '';

                return true;
            }
        }
</script>
</head>

<body>

        <h1 style="margin-left:20px;"Registration Form>Registration Form</h1><hr/>

           Name: <input id="fullname" type="text" placeholder="Full Name*"
                 name="fullname" onKeyPress="return isChar(event)" onChange="return isChar(event);"/><label id="error"></label><br /><br />

<button type="submit" id="submit" name="submit" onClick="return valid(event)" class="btn btn-link text-uppercase"> Submit now</button>

答案 6 :(得分:0)

您可以参考以下站点以了解电话号码验证

https://www.w3resource.com/javascript/form/non-empty-field.php

答案 7 :(得分:0)

似乎边缘情况太多了,我去做了一个更简单的检查:

^(([0-9\ \+\_\-\,\.\^\*\?\$\^\#\(\)])|(ext|x)){1,20}$

可能要指出的第一件事是允许重复“ ext”,但是此正则表达式的目的是防止用户意外输入电子邮件ID等代替电话号码。

答案 8 :(得分:-1)

<!DOCTYPE html>
<html>
    <head>
        <style>
           .container__1{
               max-width: 450px;
               font-family: 'Lucida Sans', 'Lucida Sans Regular', 'Lucida Grande', 'Lucida Sans Unicode', Geneva, Verdana, sans-serif;
           }
           .container__1 label{
               display: block;
               margin-bottom: 10px;
           }
           .container__1 label > span{
               float: left;
               width: 100px;
               color: #F072A9;
               font-weight: bold;
               font-size: 13px;
               text-shadow: 1px 1px 1px #fff;
           }
           .container__1 fieldset{
               border-radius: 10px;
               -webkit-border-radious:10px;
               -moz-border-radoius: 10px;
               margin: 0px 0px 0px 0px;
               border: 1px solid #FFD2D2;
               padding: 20px;
               background:#FFF4F4 ;
               box-shadow: inset 0px 0px 15px #FFE5E5;


           }
           .container__1 fieldset legend{
               color: #FFA0C9;
               border-top: 1px solid #FFD2D2 ;
               border-left: 1px solid #FFD2D2 ;
               border-right: 1px solid #FFD2D2 ;
               border-radius: 5px 5px 0px 0px;
               background: #FFF4F4;
               padding: 0px 8px 3px 8px;
               box-shadow: -0px -1px 2px #F1F1F1;
               font-weight: normal;
               font-size: 12px;
           }
           .container__1 textarea{
               width: 250px;
               height: 100px;
           }.container__1 input[type=text],
           .container__1 input[type=email],
           .container__1 select{
               border-radius: 3px;
               border: 1px solid #FFC2DC;
               outline: none;
               color: #F072A9;
               padding: 5px 8px 5px 8px;
               box-shadow: inset 1px 1px 4px #FFD5E7;
               background: #FFEFF6;
               

           }
           .container__1 input[type=submit],
           .container__1 input[type=button]{
               background: #EB3B88;
               border: 1px solid #C94A81;
               padding: 5px 15px 5px 15px;
               color: #FFCBE2;
               box-shadow: inset -1px -1px 3px #FF62A7;
               border-radius: 3px;
               font-weight: bold;
           }
           .required{
               color: red;
           }
        </style>
    </head>
    <body>
        <div class="container__1">
            <form name="RegisterForm" onsubmit="return(SubmitClick())">
                <fieldset>
                    <legend>Personal</legend>
                    <label for="field1"><span >Name<span class="required">*</span><input id="name" type="text" class="input-field" name="Name" value=""</label>
                    <label for="field2"><span >Email<span class="required">*</span><input placeholder="Ex: csa123@yahoo.in" id="email" type="email" class="input-field" name="Email" value=""</label>
                    <label for="field3"><span >Phone<span class="required">*</span><input placeholder="+919853004369" id="mobile" type="text" class="input-field" name="Mobile" value=""</label>
                    <label for="field4">
                        <span>Subject</span>
                        <select name="subject" id="subject" class="select-field">
                            <option value="none">Choose Your Sub..</option>
                            <option value="Appointment">Appiontment</option>
                            <option value="Interview">Interview</option>
                            <option value="Regarding a post">Regarding a post</option>
                        </select>
                    </label>
                    <label><span></span><input type="submit"  ></label>
                </fieldset>
            </form>
        </div>
    </body>
    <script>
        function SubmitClick(){
        _name = document.querySelector('#name').value;
        _email = document.querySelector('#email').value;
        _mobile = document.querySelector('#mobile').value;
        _subject = document.querySelector('#subject').value;
          if(_name == '' || _name == null ){
              alert('Enter Your Name');
              document.RegisterForm.Name.focus();
              return false; 
          } 
          var atPos = _email.indexOf('@');
         var dotPos = _email.lastIndexOf('.');

          if(_email == '' || atPos<1 || (dotPos - atPos)<2){
              alert('Provide Your Correct Email address');
              document.RegisterForm.Email.focus();
              return false;
          }
          var regExp = /^\+91[0-9]{10}$/;
          if(_mobile == '' || !regExp.test(_mobile)){
              alert('Please Provide your Mobile number as Ex:- +919853004369');
              document.RegisterForm.Mobile.focus();
              return false;
          }
          if(_subject == 'none'){
              alert('Please choose a subject');
              document.RegisterForm.subject.focus();
              return false;
          }else{
            alert (`success!!!:--'\n'Name:${_name},'\n' Mobile: ${_mobile},'\n' Email:${_email},'\n' Subject:${_subject},`)
          }
        
          
        }
    </script>
</html>

答案 9 :(得分:-2)

if (charCode > 47 && charCode < 58) {
    document.getElementById("error").innerHTML = "*Please Enter Your Name Only";
    document.getElementById("fullname").focus();
    document.getElementById("fullname").style.borderColor = 'red';
    return false;
} else {
    document.getElementById("error").innerHTML = "";
    document.getElementById("fullname").style.borderColor = '';
    return true;
}