Posted By
Bajarangi soft ,
Posted On 01-10-2020
The Animation Code
JavaScript animations are done by programming gradual changes in an element's style.
The changes are called by a timer. When the timer interval is small, the animation looks continuous.
The basic code is:
Step 1: create index.html file implement html code as below in it.
<!DOCTYPE html>
<html>
<body>
<h1>Animation</h1>
<div id ="Container">
<div id ="Animation"></div>
</div>
</body>
<html>
Step 2:Create css as below code implement for create div elements.
#Container {
width: 400px;
height: 400px;
position: relative;
background: green;
}
#Animation {
width: 50px;
height: 50px;
position: absolute;
background-color: pink;
border-radius: 50px;
}
Step 3:The basic code to move div.
var id = setInterval(frame, 5);
function frame() {
if (/* test for finished */) {
clearInterval(id);
} else {
/* code to change the element style */
}
}
function Move_ball() {
var element = document.getElementById("Animation");
var pos = 0;
var id = setInterval(frame, 10);
function frame() {
if (pos == 350) {
clearInterval(id);
} else {
pos++;
element.style.top = pos + 'px';
element.style.left = pos + 'px';
}
}
}
Now we create complete code for animation with java script.
<!DOCTYPE html>
<html>
<head>
<title>How Can I Create HTML Animations Using JavaScript</title>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1">
<link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/3.4.1/css/bootstrap.min.css">
</head>
<style>
h1{
color:red;
}
#Container {
width: 400px;
height: 400px;
position: relative;
background: green;
}
#Animation {
width: 50px;
height: 50px;
position: absolute;
background-color: pink;
border-radius: 50px;
}
</style>
<body>
<div class="container">
<br>
<br>
<div class="text-center">
<h1>Create HTML Animations Using JavaScript</h1>
</div>
<br>
<div class="well">
<p>
<button class="btn btn-success" onclick="Move_ball()">Click Me</button>
</p>
<div id ="Container">
<div id ="Animation">.....div</div>
</div>
</div>
<div>
</body>
</html>
<script>
function Move_ball() {
var element = document.getElementById("Animation");
var pos = 0;
var id = setInterval(frame, 10);
function frame() {
if (pos == 350) {
clearInterval(id);
} else {
pos++;
element.style.top = pos + 'px';
element.style.left = pos + 'px';
}
}
}
</script>