The addEventListener() method

The addEventListener() method attaches an event handler to the specified element without overwriting existing event handlers. You can add many event handlers to one element.

Syntax

element.addEventListener(event, function, useCapture);

Example: 1

Add an event listener that fires when a user clicks a button

document.getElementById("myBtn").addEventListener("click", displayDate);

Add an Event Handler to an Element

Example

Alert "Hello World!" when the user clicks on an element

element.addEventListener("click", function(){ alert("Hello World!"); });

 

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