HTML | DOM onclick Event

The HTML DOM onclick event occurs when the user clicks on an element.

HTML DOM onclick event supports All HTML elements, EXCEPT:

<base>
<bdo>
<br>
<head>
<html>
<iframe>
<meta>
<param>
<script>
<style>
<title>

Syntax:

In HTML:

<element onclick="myScript">

In JavaScript:

object.onclick = function(){myScript};

In JavaScript, using the addEventListener() method:

object.addEventListener("click", myScript);

Example 1: Using HTML

<!DOCTYPE html> 
<html> 
  
<body> 
    <center> 
        <h1 style="color:green"> 
          GeeksforGeeks 
      </h1> 
        <h2>HTML DOM onclick Event</h2> 
        <button onclick="myFunction()">Click me</button> 
  
        <p id="demo"></p> 
  
        <script> 
            function myFunction() { 
                document.getElementById( 
                  "demo").innerHTML = "GeeksforGeeks"; 
            } 
        </script> 
    </center> 
</body> 
  
</html> 

Output:

Example 2: Using JavaScript

<!DOCTYPE html> 
<html> 
  
<body> 
    <center> 
        <h1 style="color:green"> 
          GeeksforGeeks 
      </h1> 
        <h2>HTML DOM onclick Event</h2> 
        <p id="demo">Click me.</p> 
  
        <script> 
            document.getElementById("demo").onclick = function() { 
                GFGfun() 
            }; 
  
            function GFGfun() { 
                document.getElementById( 
                  "demo").innerHTML = "YOU CLICKED ME!"; 
            } 
        </script> 
    </center> 
</body> 
  
</html> 

Output:
Before:

After:

Example 3: In JavaScript, using the addEventListener() method:

<!DOCTYPE html> 
<html> 
  
<body> 
    <center> 
        <h1 style="color:green"> 
          GeeksforGeeks 
      </h1> 
        <h2>HTML DOM onclick Event</h2> 
        <p id="demo">Click me.</p> 
  
        <script> 
            document.getElementById( 
              "demo").addEventListener("click", GFGfun); 
  
            function GFGfun() { 
                document.getElementById( 
                  "demo").innerHTML = "YOU CLICKED ME!"; 
            } 
        </script> 
    </center> 
</body> 
  
</html> 

Output:
Before:

After:

Supported Browsers: The browsers supported by DOM onclick Event are listed below:

Google Chrome
Internet Explorer
Firefox
Apple Safari
Opera

My Personal Notes

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