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HTML | DOM addEventListener() Method
  • Last Updated : 24 Jul, 2019

The addEventListener() method attaches an event handler to the specified element.

Syntax:

element.addEventListener(event, function, useCapture)

Note: The third parameter use capture is usually set to false as it is not used.

Below program illustrates the DOM addEventListener():

Example:



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<!DOCTYPE html>
<html>
  
<head>
    <title>DOM Location host Property</title>
    <style>
        h1 {
            color: green;
        }
          
        h2 {
            font-family: Impact;
        }
          
        body {
            text-align: center;
        }
    </style>
</head>
  
<body>
    <h1>GeeksforGeeks</h1>
    <h2>addEventListener() method</h2>
  
    <p>
     This example uses the addEventListener() 
     method to add many events on the same 
     button.
    </p>
  
    <button id="myBtn">Try it</button>
  
    <p id="demo"></p>
  
    <script>
        var x = document.getElementById("myBtn");
        x.addEventListener("mouseover", myFunction);
        x.addEventListener("click", mySecondFunction);
        x.addEventListener("mouseout", myThirdFunction);
  
        function myFunction() {
            document.getElementById("demo").innerHTML += "Moused over!<br>"
            this.style.backgroundColor = "red"
        }
  
        function mySecondFunction() {
            document.getElementById("demo").innerHTML += "Clicked!<br>"
        }
  
        function myThirdFunction() {
            document.getElementById("demo").innerHTML += "Moused out!<br>"
        }
    </script>
  
</body>
  
</html>                    

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Output:

  • Initially:

  • Mouse Over Event:

  • Mouse Clicked Event:

  • Mouse Out Event:

Supported Browsers: The browser supported by Location host Property are listed below:

  • Google Chrome
  • Internet Explorer
  • Firefox
  • Opera
  • Safari

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