JavaScript实现手机号中间四位隐藏及正则验证详解

// 匹配手机号首尾，以类似“123****8901”的形式输出
'12345678901'.replace(/(\d{3})\d{4}(\d{4})/, '$1****$2');

<!doctype html>
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=gb2312" />
<title>无标题文档</title>
<script type="text/javascript">
var phone='12345678901';
var dh=phone.replace(/(\d{3})\d{4}(\d{4})/, '$1****$2');
alert (dh);
</script>
</head>

<body>
</body>
</html>

// 匹配连续11位数字，并替换其中的前7位为*号
'15110280327'.replace(/\d{7}(\d{4})/, '*******$1');

<!doctype html>
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=gb2312" />
<title>无标题文档</title>
<script type="text/javascript">
var phone='12345678901';
var dh=phone.replace(/\d{7}(\d{4})/, '*******$1');
alert (dh);
</script>
</head>

<body>
</body>
</html>

<!doctype html>
<html lang="en">
<head>
 <meta charset="UTF-8" />
 <title>js手机号码验证以及隐藏中间四位数字</title>
 <script type="text/javascript" src="http://code.jquery.com/jquery-latest.js"></script>
</head>
<body>
 <input type="text" id="myText">
 <p>js手机验证以及隐藏手机号码中间四位</p>
 <input type="button" value="提交" id="subBtn">
 <script type='text/javascript'> 
 $(function(){
  $("#subBtn").click(function(){
  if($("#myText").val()==""){
  alert("手机号码不能为空")
  }else{
  if(iphoneCheck(myText)){
  alert("提交成功");
  var phone=$("#myText").val();
  var myphone=phone.substr(3,4);
  //alert(myphone)
  var lphone=phone.replace(myphone,"****");
  $("#myText").val(lphone);
  }else{
  alert("请输入正确的手机号码")
  }
  }
  
  function iphoneCheck(id){
  var temp=document.getElementById("myText");
  var re=/^[1][34587]\d{9}$/;//手机号码验证正则表达式
  if(re.test(temp.value)){
  return true;
  }else{
  return false;
  }
  }
  });
 });
 </script>
</body>
</html>