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js delay timer simulates the function of displaying personal information when swiping the avatar in QQ (code)

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不言Original
2018-08-16 14:56:001617browse

The content of this article is about the js delay timer simulation function (code) that displays personal information when swiping the avatar in QQ. It has certain reference value. Friends in need can refer to it. I hope It will help you.

Principle

  • Use mouse stroke-in and stroke-out events

  • Use timer to delay disappearance

  • Clear timer

Code implementation

<!DOCTYPE html>
<html>
  <head>
    <meta charset="utf-8">
    <title>延时定时器模拟qq划过头像显示用户信息</title>
    <style>
      div{
        float:left;
        margin:10px;
      }
      #div1{
        width: 50px;
        height:50px;
        background:red;
      }
      #div2{
        width: 250px;
        height: 180px;
        background: #ccc;
        display: none;
      }
    </style>
    <script>
      window.onload=function(){
        var oDiv1=document.getElementById("div1");
        var oDiv2=document.getElementById("div2");
        var timer=null;
        oDiv1.onmouseover=function(){
          clearTimeout(timer);
          oDiv2.style.display="block";
        }
        oDiv1.onmouseout=function(){
          timer=setTimeout(function(){
            oDiv2.style.display="none";
          },500)
        }
        oDiv2.onmouseover=function(){
          clearTimeout(timer);
        }
        oDiv2.onmouseout=function(){
          timer=setTimeout(function(){
            oDiv2.style.display="none";
          },500)
        }
      }
    </script>
  </head>
  <body>
    <div id="div1"></div>
    <div id="div2"></div>
  </body>
</html>

Merging identical and similar codes

<!DOCTYPE html>
<html>
  <head>
    <meta charset="utf-8">
    <title>延时定时器模拟qq划过头像显示用户信息</title>
    <style>
      p{
        float:left;
        margin:10px;
      }
      #p1{
        width: 50px;
        height:50px;
        background:red;
      }
      #p2{
        width: 250px;
        height: 180px;
        background: #ccc;
        display: none;
      }
    </style>
    <script>
      window.onload=function(){
        var op1=document.getElementById("p1");
        var op2=document.getElementById("p2");
        var timer=null;
        op1.onmouseover=op2.onmouseover=function(){
          clearTimeout(timer);
          op2.style.display="block";
        }
        op1.onmouseout=op2.onmouseout=function(){
          timer=setTimeout(function(){
            op2.style.display="none";
          },500)
        }
      }
    </script>
  </head>
  <body>
    <p id="p1"></p>
    <p id="p2"></p>
  </body>
</html>

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