Want To Be A Blogger  →  Start A Blog  →  Increase Traffic  →  Make Money Online  →  Recommended Things

Check And Uncheck Checkboxes Using JavaScript

Thursday, Sep 28, 2017

Tags:- JavaScript


In this tutorial we will show you how to check and uncheck checkboxes using JavaScript.It helps the user to check and uncheck the checkbox and it also save user time.You may also like Add,Edit And Delete Rows From Table Dynamically Using JavaScript


See Demo
Check And Uncheck Checkbox


To Check And Uncheck Checkboxes It Takes Only One Step:-

  1. Make a HTML file and define markup,scripting and styling


Step 1.Make a HTML file and define markup,scripting and styling

We make a HTML file and save it with a name checkbox.html

<html>
<head>
<script>
function check()
{
 var check=document.getElementsByTagName('input');
 for(var i=0;i<check.length;i++)
 {
  if(check[i].type=='checkbox')
  {
   check[i].checked=true;
  }
 }
}

function uncheck()
{
 var uncheck=document.getElementsByTagName('input');
 for(var i=0;i<uncheck.length;i++)
 {
  if(uncheck[i].type=='checkbox')
  {
   uncheck[i].checked=false;
  }
 }
}
</script>
<style>
body
{
 width:100%;
 margin:0 auto;
 padding:0px;
 background-color:#424242;
 font-family:helvetica;
}
#wrapper
{
 text-align:center;
 margin:0 auto;
 padding:0px;
 width:100%;
}
h1
{
 margin-top:50px;
 color:#D8D8D8;
}
h1 p
{
 font-size:14px;
 color:white;
}
input[type="button"]
{
 background:none;
 color:white;
 border:1px solid white;
 width:100px;
 height:50px;
 border-radius:50px;
 margin:10px;
 font-weight:bold;
}
input[type="checkbox"]
{
 width:20px;
 height:20px;
}
td
{
 color:white;
 font-weight:bold;
}
</style>
</head>
<body>
<div id="wrapper">
<input type="button" value="Check All" onclick="check();">
<input type="button" value="Uncheck All" onclick="uncheck();">
<table align='center' cellspacing='10'>
 <tr>
  <td><input type="checkbox"></td><td>PHP</td>
 </tr>
 <tr>
  <td><input type="checkbox"></td><td>HTML</td>
 </tr>
 <tr>
  <td><input type="checkbox"></td><td>JavaScript</td>
 </tr>
 <tr>
  <td><input type="checkbox"></td><td>jQuery</td>
 </tr>
 <tr>
  <td><input type="checkbox"></td><td>CSS</td>
 </tr>
 <tr>
  <td><input type="checkbox"></td><td>MySQL</td>
 </tr>
</table>
</div>
</body>
</html>

In this step we define markups for checkboxes and made two buttons to check all and uncheck all checkbox.We create two functions check() and uncheck() to check and uncheck the checkboxes.In first function we get all the input elements and check if type is checkbox and if yes it check the checkbox.In second function it is same as first function only one thing is different it gets all the checkboxes and uncheck all of them.You may also like Live Character Count Using JavaScript


Thats all, this is how to check and uncheck checkboxes using JavaScript.You can customize this code further as per your requirement. And please feel free to give comments on this tutorial.

Subscribe Our Newsletter And Get Tutorials And Offers Via Email

About Me


Hello, My Name is Mudit Jain. I am a Web Developer, Professional Blogger and Digital Marketer from India. I am the founder of TalkersCode. I started this blog in february 2015 to help web developers & bloggers by providing easy and best tutorials, articles and offers for web developers and bloggers.