HTML | DOM animationiteration Event

The animationiteration event occurs when a CSS animation is repeated.

The animation will only be played one-time if the CSS animation-iteration-count property is set to “1”. The animation needs to run more than once for this event to fire.

Events that can occur when a CSS animation plays:

  • animationstart: occurs when the CSS animation has started.
  • animationiteration: occurs when the CSS animation is repeated.
  • animationend: occurs when the CSS animation has completed.

Syntax:

  • Code for Chrome, Safari and Opera
    object.addEventListener("webkitAnimationIteration", myScript);
  • Standard syntax:
    object.addEventListener("animationiteration", myScript);

Example:



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<!DOCTYPE html>
<html>
  
<head>
    <style>
        #div {
            width: 100%;
            height: 100px;
            background: green;
            position: relative;
            font-size: 40px;
        }
        
        /* Chrome, Safari, Opera */
        @-webkit-keyframes mymove {
            from {
                top: 0px;
            }
            to {
                top: 200px;
            }
        }
          
        @keyframes mymove {
            from {
                top: 0px;
            }
            to {
                top: 200px;
            }
        }
    </style>
</head>
  
<body>
    <center>
        <h1 style="color:green">
          GeeksforGeeks
      </h1>
  
        <div id="div" onclick="GFGFun()">
            Click me to start the animation.
        </div>
  
        <script>
            var x = document.getElementById("div");
  
            // Start the animation with JavaScript
            function GFGFun() {
                // Code for Chrome, Safari and Opera
                x.style.WebkitAnimation = "mymove 4s 2";
                // Standard syntax
                x.style.animation = "mymove 4s 2";
            }
  
            // Code for Chrome, Safari and Opera
            x.addEventListener("webkitAnimationStart", StartFun);
            x.addEventListener("webkitAnimationIteration", RepeatFun);
  
            // Standard syntax
            x.addEventListener("animationstart", StartFun);
            x.addEventListener("animationiteration", RepeatFun);
  
            function StartFun() {
                this.innerHTML = "The animation has started";
                this.style.backgroundColor = "lime";
            }
  
            function RepeatFun() {
                this.innerHTML = "Animation was played again";
                this.style.backgroundColor = "darkgreen";
            }
        </script>
    </center>
</body>
  
</html>

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Output:

Supported Browsers: The browsers supported by DOM animationiteration Event are listed below:

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

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