The HTML DOM Style transitionTimingFunction property returns and modify the function that represent the speeding curve of the transition effect of an element.
Syntax
Following is the syntax −
1. Returning transitionTimingFunction
object.transitionTimingFunction
2. Modifying transitionTimingFunction
object.transitionTimingFunction = “ease | linear | ease-in | ease-out | ease-in-out | cubic-bezier() | initial | inherit”
Let us see an example of HTML DOM Style transitionTimingFunction Property −
Example
<!DOCTYPE html>
<html>
<style>
body {
color: #000;
height: 100vh;
}
.btn {
background: #db133a;
border: none;
height: 2rem;
border-radius: 2px;
width: 40%;
display: block;
color: #fff;
outline: none;
cursor: pointer;
margin: 1rem 0;
}
.circle {
height: 100px;
width: 100px;
background-color: #db133a;
}
.circle:hover {
height: 200px;
width: 200px;
border-radius: 50%;
transition: all 2s;
}
.show {
font-size: 1.2rem;
margin: 1rem 0;
}
</style>
<body>
<h1>DOM Style transitionTimingFunction Property Demo</h1>
<div class='circle'></div>
<button onclick="set()" class="btn">Set transitionTimingFunction</button>
<div class="show">Now, hover on the square</div>
<script>
function set() {
document.querySelector('.circle').style.transitionTimingFunction = "ease-in-out";
}
</script>
</body>
</html>Output

Click on “Set transitionTimingFunction” button and then hover on the “red” square to see the transitionTimingFunction effect.
