Explain the concept of event handling in JavaScript and provide an example.
Explain the concept of event handling in JavaScript and provide an example.
16316-Jul-2023
Updated on 17-Jul-2023
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Explain the concept of event handling in JavaScript and provide an example.
Aryan Kumar
17-Jul-2023Sure. Event handling is a way to respond to user interactions with a web page. For example, when a user clicks on a button, you can use event handling to run a piece of JavaScript code.
In JavaScript, event handling is done using event listeners. An event listener is a function that is called when a specific event occurs. For example, you can create an event listener that is called when a user clicks on a button.
To create an event listener, you use the
addEventListener()
method. TheaddEventListener()
method takes two arguments: the name of the event and the function that you want to call when the event occurs. For example, the following code creates an event listener that is called when a user clicks on a button:This code will create a new
button
element with the ID ofmyButton
. TheaddEventListener()
method will be called when the user clicks on thebutton
element. TheaddEventListener()
method will pass theclick
event to the function that you specified. The function that you specified will log a message to the console when theclick
event occurs.Here is an example of how to use event handling in JavaScript:
This code will create a new
button
element with the ID ofmyButton
. TheaddEventListener()
method will be called when the user clicks on thebutton
element. TheaddEventListener()
method will pass theclick
event to the function that you specified. The function that you specified will log a message to the console when theclick
event occurs.