javascript表單正則應(yīng)用

更新時(shí)間：2017年02月04日 09:35:35 作者：Jack-小俊

這篇文章主要為大家詳細(xì)介紹了javascript表單正則應(yīng)用，具有一定的參考價(jià)值，感興趣的小伙伴們可以參考一下

以下是之前練習(xí)正則表達(dá)式時(shí)候做的js表單測試.
input里的value用.test()比較以后，處理正則和需求，反饋，代碼欠優(yōu)化，但功能完善，僅供參考學(xué)習(xí)

html部分

<!DOCTYPE html>
<html lang="en">
<head>
  <meta charset="UTF-8">
  <title>新用戶注冊</title>
  <link rel="stylesheet" href="./css/regForm.css" type="text/css">
  <script type="text/javascript" src="js/regForm.js"></script>    <!--外部樣式和JS*-->
</head>
<body>
  <div id="section">
    <form action="" method="get" id="form">
    <table id="table">
      <tr>
        <td>用戶名</td>
        <td><input id="username" type="text" class="text"></td>
        <td><div class="icon" id="usernameicon"></div></td>
      </tr>
      <tr>
        <td>Email</td>
        <td><input type="text" class="text" id="email"></td>
        <td><div class="icon" id="emailicon">(請輸入正確的Email地址)</div></td>
      </tr>
      <tr>
        <td>密碼</td>
        <td><input type="password" id="password"></td>
        <td><div id="pwicon" class="icon">(請輸入強(qiáng)度較高的密碼)</div></td>
      </tr>
      <tr>
        <td>密碼強(qiáng)度</td>
        <td>
          <div class="pwstrength" id="low">弱</div>
          <div class="pwstrength" id="middle">中</div>
          <div class="pwstrength" id="strong">強(qiáng)</div>
        </td>
        <td></td>
      </tr>
      <tr>
        <td>確認(rèn)密碼</td>
        <td><input id="cfpw" type="password" class="text" value=""></td>
        <td><div class="icon" id="cfpwicon"></div></td>
      </tr>
      <tr>
        <td>MSN</td>
        <td><input id="msn" type="text" class="text">
        </td>
        <td><div class="icon" id="msnicon"></div></td>
      </tr>
      <tr>
        <td>QQ</td>
        <td><input type="text" class="text" id="qq">
        </td>
        <td><div id="qqicon" class="icon">(請輸入正確的QQ號碼)</div></td>
      </tr>
      <tr>
        <td>辦公電話</td>
        <td><input id="offphone" type="text" class="text"></td>
        <td><div class="icon" id="offphoneicon"></div></td>
      </tr>
      <tr>
        <td>家庭電話</td>
        <td><input id="homephone" type="text" class="text">
        </td>
        <td><div class="icon" id="homephoneicon"></div></td>
      </tr>
      <tr>
        <td>手機(jī)</td>
        <td ><input type="text" class="text" id="phone"></td>
        <td><div class="icon" id="phoneicon">(請輸入正確的手機(jī)號)</div></td>
      </tr>
      <tr>
        <td>密碼提示問題</td>
        <td>
        <select class="text" name="question" value="">
          <option value="" selected>請選擇密碼提示問題</option>
          <option value="">你熱愛編程嗎？</option>
          <option value="">你的中學(xué)名字是？</option>
          <option value="">最開心的事是什么？</option>
        </select>        
        </td>
        <td></td>
      </tr>
      <tr>
        <td>密碼問題答案</td>
        <td><input id="answer" type="text" class="text"></td>
        <td><div class="icon" id="answericon"></div></td>
      </tr>
      <tr>
        <td></td>
        <td class="lasttext"><input type="radio">我已看過并接受《<a href="">用戶協(xié)議</a>》</td>
        <td></td>
      </tr>
      <tr>
        <td></td>
        <td><input type="image" src="image/login.png" id="login"></td>
        <td></td>
      </tr>
    </table>
    </form>
  </div> 
</body>
</html>

css部分>>

body{
background:url("../image/10.png") repeat-x;
}
#section{
  width:1002px;
  height:612px;
  margin:15px auto;
  position:relative;
}
#table{
  width:600px;
  height:550px;
  background-color:#fff;
  position:absolute;
  font-size:18px;
  line-height:5px;
  border-radius: 5px;
  box-shadow: 0 0 15px 2px rgba(0, 0, 0, 0.4);
  padding: 20px 30px;
  box-sizing: border-box;
  width: 80%;
  margin: 0 10%;
}
#table .pwstrength{
  float:left;
  height:30px;
  width:60px;
  line-height:30px;
  text-align:center;
  border-radius:4px;
  color:#000;
}
#table .text{
  width:215px;
  height:32px;

}
#password{
  width:215px;
  height:32px;

}
#table .lasttext{
  font-size:14px;
}
#table tr td{
  width:180px;
}
#table .icon{
  width:175px;
  height:24px;
  float:left;
  background:no-repeat;
  font-size:12px;
  color:#000;
  text-align:right;
  line-height:24px;
}

javascript部分，這邊使用的是dom2級操作，先封裝好事件對象，在IE和非IE的情況下進(jìn)行操作

//封裝一下兼容性函數(shù)
  var EV ={
    //綁定事件兼容
    addEvent:function(node,ename,fn){
      if(navigator.userAgent.toLowerCase().indexOf("ie")!=-1){       //在ie下添加綁定事件
        node.attachEvent("on"+ename,fn);
      }else{
        node.addEventListener(ename,fn,false);
      }
    },
    removeEvent:function(node,ename,fn){
      if(navigator.userAgent.toLowerCase().indexOf("ie")!=-1){       //在ie下添加綁定事件
        node.detachEvent("on"+ename,fn);
      }else{
        node.removeEventListener(ename,fn,false);
      }
    }
  }
window.onload=function(){
//email地址檢測 html事件處理
  var eMail = document.getElementById("email");
  EV.addEvent(eMail,"blur",checkEmail);
  function checkEmail(){ 
    var email = document.getElementById("email").value;
    var emailicon = document.getElementById("emailicon");
    var epatt = new RegExp("\\w+@[a-zA-Z0-9]+\\.[a-zA-Z0-9]{2,14}");
                          //利用正則表達(dá)式
    if(epatt.test(email)){
      emailicon.style.backgroundImage="url('image/tick.png')";
      emailicon.innerHTML="";
    }
    else{
      emailicon.style.backgroundImage="url('image/cross.png')";
      emailicon.innerHTML="請輸入正確的郵箱地址!";
      emailicon.style.color="#dd0000";
    }
  }
//密碼強(qiáng)度檢測
  var pwd =document.getElementById("password");
  EV.addEvent(pwd,"blur",checkCode);
  function checkCode(){
    var pwdv =document.getElementById("password").value;
    var low =document.getElementById("low");
    var middle =document.getElementById("middle");
    var strong =document.getElementById("strong");
    var pwssicon =document.getElementById("phoneicon");
    var pwdpatt1 = /\d+/g; //數(shù)字
    var pwdpatt2 = /[a-zA-Z]+/g; //字母
    var pwdpatt3 = /(\W)+/g; //特殊字符
    var booldata1,booldata2,booldata3;
    if(pwdv.length<6){
      pwicon.style.backgroundImage="url('image/cross.png')";
      pwicon.innerHTML="密碼不得少于6位數(shù)!";
      pwicon.style.color="#dd0000";
    }
    if(pwdv==""){
      pwicon.style.backgroundImage="url('image/cross.png')";
      pwicon.innerHTML="密碼項(xiàng)不能為空!";
      pwicon.style.color="#dd0000";
    }
    if(pwdpatt1.test(pwdv)){
      booldata1 = true;
    }
    if(pwdpatt2.test(pwdv)){
      booldata2 = true;
    }
    if(pwdpatt3.test(pwdv)){
      booldata3 = true;
    }

      if(booldata1||booldata2||booldata3){
        low.style.backgroundColor="#CB4042";
        pwicon.style.backgroundImage="url('image/tick.png')";
        pwicon.innerHTML="";
      }                    //強(qiáng)度低

      if((booldata1&&booldata2)||(booldata1&&booldata3)||(booldata3&&booldata2)){
        middle.style.backgroundColor="#F7C242"; 
        pwicon.style.backgroundImage="url('image/tick.png')";
        pwicon.innerHTML="";        //強(qiáng)度中
      }
      if(booldata1&&booldata2&&booldata3){
        strong.style.backgroundColor="#227D51";
        pwicon.style.backgroundImage="url('image/tick.png')"; 
        pwicon.innerHTML="";              //強(qiáng)度強(qiáng)
      }
    } 

    //檢測QQ號碼
    var qq =document.getElementById("qq");
    EV.addEvent(qq,"blur",checkQQ);
    function checkQQ(){
      var qqicon =document.getElementById("qqicon");
      var qqtext =document.getElementById("qq").value;
      var qqpatt = /^[1-9](\d{5,10})$/;
      if(qqpatt.test(qqtext)){
        qqicon.style.backgroundImage="url('image/tick.png')";
        qqicon.innerHTML="";
      }
      else{
        qqicon.style.backgroundImage="url('image/cross.png')";
        qqicon.innerHTML="請輸入5至11位數(shù)的QQ號碼";
        qqicon.style.color="#dd0000";
      }
    }
    //檢測手機(jī)號 
    var phone = document.getElementById("phone");
    EV.addEvent(phone,"blur",checkPhone);
      function checkPhone(){
        var phoneicon =document.getElementById("phoneicon");
        var phonenum = document.getElementById("phone").value;
        var phonepatt = /^0?(13|15|14|18)[0-9]{9}$/;
        if(phonepatt.test(phonenum)){
          phoneicon.style.backgroundImage="url('image/tick.png')";
          phoneicon.innerHTML="";
        }
        else{
          phoneicon.style.backgroundImage="url('image/cross.png')";
          phoneicon.innerHTML="請輸入正確的手機(jī)號!";
          phoneicon.style.color="#dd0000";
        }
      }

  //檢測用戶名
    var username = document.getElementById("username");
    EV.addEvent(username,"blur",checkUser);
    function checkUser(){
      var usercon = document.getElementById("username").value;
      var usernameicon =document.getElementById("usernameicon");
      var unpatt = /[A-Za-z0-9_\-\u4e00-\u9fa5]{6,18}/;
      if(unpatt.test(usercon)){
        usernameicon.style.backgroundImage="url('image/tick.png')";
        usernameicon.innerHTML="";
      }
      else{
        usernameicon.style.backgroundImage="url('image/cross.png')";
        usernameicon.innerHTML="用戶名至少大于6個(gè)字符!";
        usernameicon.style.color="#dd0000";
      if(usercon==""){
        usernameicon.style.backgroundImage="url('image/cross.png')";
        usernameicon.innerHTML="用戶名不能為空!";
        usernameicon.style.color="#dd0000";
      }
    }
  //確認(rèn)密碼
    var Cfpw =document.getElementById("cfpw");
    EV.addEvent(Cfpw,"blur",cfPw);
    function cfPw(){
      var cfpw =document.getElementById("cfpw").value;
      var cfpwicon=document.getElementById("cfpwicon");
      var pwd =document.getElementById("password").value;
      if(cfpw==pwd&&cfpw!=""){
        cfpwicon.style.backgroundImage="url('image/tick.png')";
        cfpwicon.innerHTML="";
      }else{
        cfpwicon.style.backgroundImage="url('image/cross.png')";
        cfpwicon.innerHTML="輸入的密碼不一致!";
        cfpwicon.style.color="#dd0000";
      }
    }
  //MSN
    var Msn = document.getElementById("msn");
    EV.addEvent(Msn,"blur",checkMsn);
    function checkMsn(){
      var msn =document.getElementById("msn").value;
      var msnicon =document.getElementById("msnicon");
      var msnpatt = /\w+@[a-zA-Z0-9]+\.[a-zA-Z0-9]{2,14}/;
      if(msnpatt.test(msn)){
        msnicon.style.backgroundImage="url('image/tick.png')";
        msnicon.innerHTML="";
      }else{
        msnicon.style.backgroundImage="url('image/cross.png')";
        msnicon.innerHTML="msn應(yīng)為正確郵箱地址!";
        msnicon.style.color="#dd0000";
      }
    }  
  //辦公電話
    var officephone =document.getElementById("offphone");
    EV.addEvent(officephone,"blur",checkoffPhone);
    function checkoffPhone(){
      var offphone = document.getElementById("offphone").value;
      var offphoneicon =document.getElementById("offphoneicon");
      var offpatt = /(\(\d{3,4}\)|\d{3,4}-)?\d{8}/;
      if(offpatt.test(offphone)){
        offphoneicon.style.backgroundImage="url('image/tick.png')";
        offphonecon.innerHTML="";
      }else{
        offphoneicon.style.backgroundImage="url('image/cross.png')";
        offphoneicon.innerHTML="例:010-88888888";
        offphoneicon.style.color="#dd0000";
      }
    }
  //家庭電話
    var Homephone =document.getElementById("homephone");
    EV.addEvent(Homephone,"blur",checkHomephone);
    function checkHomephone(){
      var homephone =document.getElementById("homephone").value;
      var homephoneicon =document.getElementById("homephoneicon");
      var homepatt = /(\(\d{3,4}\)|\d{3,4}-)?\d{8}/;
      if(homepatt.test(homephone)){
        homephoneicon.style.backgroundImage="url('image/tick.png')";
        homephonecon.innerHTML="";
      }else{
        homephoneicon.style.backgroundImage="url('image/cross.png')";
        homephoneicon.innerHTML="例:010-88888888";
        homephoneicon.style.color="#dd0000";
      }
    }
  //問題答案
      function checkAnswer(){
      var answer =document.getElementById("answer").value;
      var answericon =document.getElementById("answericon");
      if(answer!=""){
        answericon.style.backgroundImage="url('image/tick.png')";
        answercon.innerHTML="";
      }else{
        answericon.style.backgroundImage="url('image/cross.png')";
        answericon.innerHTML="密碼問題答案不能為空!";
        answericon.style.color="#dd0000";
      }
    }
  //登錄注冊
      var login =document.getElementById("login");
      EV.addEvent(login,"click",Login);
      function Login(){
        var form =document.getElementById("form");
        if(username.value==""){
          alert("用戶名不能為空!");
          this.value.focus();
          return false;
        }
        if(password.value==""){
          alert("密碼不能為空!");
          this.value.focus();
          return false;
        }
        if(email.value==""){
          alert("email不能為空!");
          this.value.focus();
          return false;
        }
        else{
        var info =confirm("信息填寫完整，確定注冊嗎?");
        if(info==true){
          window.open("http://www.eduasksz.com","_blank");
        }  
      }  
    }    
  }
}

以上就是本文的全部內(nèi)容，希望對大家的學(xué)習(xí)有所幫助，也希望大家多多支持腳本之家。

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