Explain the concept of event handling in JavaScript and provide an example.
Explain the concept of event handling in JavaScript and provide an example.
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16-Jul-2023
Updated on 17-Jul-2023
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
buttonelement with the ID ofmyButton. TheaddEventListener()method will be called when the user clicks on thebuttonelement. TheaddEventListener()method will pass theclickevent to the function that you specified. The function that you specified will log a message to the console when theclickevent occurs.Here is an example of how to use event handling in JavaScript:
This code will create a new
buttonelement with the ID ofmyButton. TheaddEventListener()method will be called when the user clicks on thebuttonelement. TheaddEventListener()method will pass theclickevent to the function that you specified. The function that you specified will log a message to the console when theclickevent occurs.