HTML | onclick Event Attribute

The onclick event attribute works when the user click on the button. When mouse clicked on the element then the script run.

Syntax:

<element onlick = "script">

Attribute Value: This attribute contains single value script which works when mouse clicked on the element.

Supported Tags: This attribute is supported by all HTML tags except <base>, <bdo>, <br>, <head>, <html>, <iframe>, <meta>, <param>, <script>, <style>, and <title>.

Example 1:



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<!DOCTYPE HTML>
<html>
    <head>
        <title>
            onclick event attribute
        </title>
        <script>
          
            /* If onclick event call then
            this script will run */
            function onclick_event() {
                document.getElementById("geeks").innerHTML 
                    = "Welcome to GeeksforGeeks!";
            }
        </script>
    </head>
      
    <body style = "text-align:center">
          
        <!-- onclick event call here -->
        <p id = "geeks" onclick = "onclick_event()">
            Click Here
        </p>
    </body>
</html>                    

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Output:

Before:


Click Here


After:


Welcome to GeeksforGeeks!


Example 2: Use button tag to call the event.











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<!DOCTYPE html> 


<html> 


    <head> 


        <title> 


            onclick event attribute 


        </title> 


        <script> 


            function funonclick() { 


                document.getElementById("geeks").innerHTML = 


                                "Welcome to GeeksforGeeks!"; 


            } 


        </script> 


    </head> 


      


    <body style = "text-align:center"> 


          


        <!-- onclick event call here -->


        <button onclick = "funonclick()"> 


            Click Here 


        </button> 


          


        <p id = "geeks"></p> 


    </body> 


</html>                     



















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Output:




Supported Browser: The browser supported by onclick event attribute are listed below:


    

  • Google Chrome
    • 

  • Internet Explorer
    • 

  • Firefox
    • 

  • Safari
    • 

  • Opera
    • 



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