JS prompt text box email address completion-JS Tutorial-php.cn

JS prompt text box email address completion

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Release： 2018-04-13 09:44:02

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This time I will bring you the JS prompt text box email address completion. What are the precautions for the JS prompt text box email address completion? The following is a practical case, let’s take a look. .

What I want to achieve now is an effect similar to the email prompt box when logging in to NetEase, but I plan to change it slightly here, that is, when entering @, the email prompt list will appear

The principle of implementing prompts is to use regular matching

The code is as follows:

<!doctype html>
<html>
<head>
  <meta charset="utf-8" />
  <title>邮箱补全提示</title>
  <style>
    ul{padding:0px;margin:0px;}
    .login_autoComplete{width:256px;border:1px solid #4190db;position:absolute;background-color:#ffffff;z-index:99;top:109px;left:40px;display:none}
    .login_auto_ul em{font-style:normal}
    .login_auto_ul li.login_auto_title{font-weight:normal;line-height:30px;}
    .login_auto_ul li{line-height:22px;text-indent:5px;font-family:"Arial";cursor:pointer;font-weight:bold;color:#333}
    .login_auto_ul li.hover,.login_auto_ul li.curr{color:#ffffff;background-color:#6eb6fe}
  </style>
  <script src="http://libs.baidu.com/jquery/2.0.0/jquery.min.js"></script>
  <script>
    window.email_auto = function(selector){
      var elt = $(selector);
      var strHtml = '<p class="login_autoComplete" id="login_autoComplete">'+
            '    <ul class="login_auto_ul">'+
            '      <li class="login_auto_title">请选择邮箱后缀</li>'+
            '      <li class="hover" hz="@qq.com"></li>'+
            '      <li hz="@163.com"></li>'+
            '      <li hz="@126.com"></li>'+
            '      <li hz="@yahoo.com"></li>'+
            '      <li hz="@sina.com"></li>'+
            '      <li hz="@21cn.com"></li>'+
            '    </ul>'+
            '  </p>';
      var lc = "#login_autoComplete";
      var autoComplete,autoLi;
      if($(lc).length==0){
        $("body").append(strHtml);
        $(lc).data("elt",elt);
        autoComplete = $("#login_autoComplete");
        autoLi = autoComplete.find("li:not(.login_auto_title)");
        autoLi.mouseover(function(){
          $(this).siblings().filter(".hover").removeClass("hover");
          $(this).addClass("hover");
        }).mouseout(function(){
          $(this).removeClass("hover");
        }).mousedown(function(){
          $(lc).data("elt").val($(this).text()).change();
          $(this).parent().parent().hide();
        });
      }else{
        $(lc).data("elt",elt);
        autoComplete = $("#login_autoComplete");
        autoLi = autoComplete.find("li:not(.login_auto_title)");
      }
      $(lc).css("width",elt.outerWidth()-1);
      //用户名补全+翻动
      elt.keyup(function(e){
        if(/13|38|40|116/.test(e.keyCode) || this.value==''){
          return false;
        }
        var username = this.value;
        if(username.indexOf("@")==-1){
          autoComplete.hide();
          return false;
        }
        autoLi.each(function(){
          this.innerHTML = username.replace(/\@+.*/,"")+$(this).attr("hz");
          if(this.innerHTML.indexOf(username)>=0){
            $(this).show();
          }else{
            $(this).hide();
          }
        }).filter(".hover").removeClass("hover");
        autoComplete.show().css({
          left : $(this).offset().left,
          top : $(this).offset().top + $(this).outerHeight(true) - 1
        });
        if(autoLi.filter(":visible").length==0){
          autoComplete.hide();
        }else{
          autoLi.filter(":visible").eq(0).addClass("hover");
        }
      }).change(function(){
        $("#login_autoComplete").hide();
      }).keydown(function(e){
        if(e.keyCode==38){ //上
          autoLi.filter(".hover").prev().not(".login_auto_title").addClass("hover").next().removeClass("hover");
        }else if(e.keyCode==40){ //下
          autoLi.filter(".hover").next().addClass("hover").prev().removeClass("hover");
        }else if(e.keyCode==13){ //Enter
          autoLi.filter(".hover").mousedown();
        }
      }).focus(function(){
        $("#login_autoComplete").data("elt",$(this));
      });
    }
    $(function(){
      email_auto("#xxx");
    });
  </script>
</head>
<body>
脚本之家测试：邮箱补全提示<br/>
<input type="text" id="xxx" style="width:300px"/>
</body>
</html>

Copy after login

I believe you have mastered the method after reading the case in this article. For more exciting information, please pay attention to other related articles on the PHP Chinese website!