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Implementation method of js select all button_javascript skills

WBOY
WBOYOriginal
2016-05-16 15:31:501388browse

The example in this article describes the implementation code of the js select all button. Share it with everyone for your reference. The details are as follows:
The screenshot of the running effect is as follows:

The specific code is as follows

<html>
 <head>
   <title>复选框checked属性</title>
   <script language="JavaScript" type="text/javascript">
      function changeState(isChecked)
     {
       var chk_list=document.getElementsByTagName("input");
       for(var i=0;i<chk_list.length;i++)
        {
         if(chk_list[i].type=="checkbox")
          {
           chk_list[i].checked=isChecked;
          }
        }
    }
   </script>
 </head>
 <body>
   <h1>请选择你的爱好</h1>
   <form name="myForm1">
     <input type="checkbox" name="cb1" checked>看书<br>
     <input type="checkbox" name="cb2" checked>上网<br>
     <input type="checkbox" name="cb3">游戏<br>
   </form>
   <hr>
   <form name="myForm2">
     <input type="checkbox" name="cb" onclick="changeState(this.checked)">全选
   </form>
 </body>
</html>

The above is the implementation method of js select all button, I hope it will be helpful to everyone's learning.

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