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How to deal with memory leaks in img tags in IE

php中世界最好的语言
php中世界最好的语言Original
2018-04-17 16:06:381732browse

This time I will bring you how to deal with memory leaks in img tags in IE. What are the precautions for dealing with memory leaks in img tags in IE. The following is a practical case. Let’s take a look.

Code: 

<html>
<head>
 <meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
 <title>IMG元素内存泄露测试</title>
 <script type="text/javascript" src="jquery-1.7.1.js"></script>
 <script type="text/javascript">
  $(function () {
   var i = 0;
   var t;
   // img标签方式 
   function changeImage() {
    i++;
    var picIndex = i % 20;
    $("#imagePath").html("images/" + picIndex + ".jpg");
    $("#p").append("<img width=&#39;100&#39; height=&#39;100&#39; src=&#39;images/" + picIndex + ".jpg&#39; />");
   };
   function end() {
    clearInterval(t);
    $("#p").find("img").each(function () {
     $(this).attr("src", "");
     $(this).remove();
    });
    CollectGarbage();
   }
   t = window.setInterval(changeImage, 200);
   window.setTimeout(end, 5000);
  });
 </script>
</head>
<body>
 <label id="imagePath"></label>
 <!-- 使用img标签，不改变图片大小，不会发生内存泄漏。 -->
 <p id="p">
 </p>
</body>
</html>

Release the js code that img takes up memory: 

$("#p").find("img").each(function () {
 $(this).attr("src", "");
 $(this).remove();
});
CollectGarbage();

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!

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