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JS method to simulate button click function_javascript skills

WBOY
WBOYOriginal
2016-05-16 15:24:121437browse

The example in this article describes the method of JS simulating button click function. Share it with everyone for your reference, the details are as follows: 

<html>
 <head>
  <title>usually function</title>
 </head>
 <script>
 function load(){
  //下面两种方法效果是一样的
  document.getElementById("target").onclick();
  document.getElementById("target").click();
 }
 function test(){
  alert("test");
 }
</script>
 <body onload="load()">
  <button id="target" onclick="test()">test</button>
 </body>
<html>

Remarks:

btnObj.click() actually uses a program to click the button and triggers the button's onclick() event

btnObj.onclick() simply calls the method pointed to by onclick of btnObj. It just calls the method and does not trigger the event

Supplement:

Example of javascript simulating mouse click on a sticky note

Here, first get the a tag element, and then click() it later.

The code is as follows: 

<!doctype html>
<html lang="en">
<head>
  <meta charset="UTF-8">
  <title>Document</title>
</head>
<body>
<a href="这里是a标签的路径">这里是a标签的名称</a>
<button onclick="fn()">点击打开a标签</button>
<script>
  var a = document.getElementsByTagName('a')[0];
  function fn(){
    a.click();
  }
</script>
</body>
</html>

I hope this article will be helpful to everyone in JavaScript programming.

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