Posted By
Bajarangi soft ,
Posted On 06-10-2020
Image Object
The Image object represents an HTML <img> element.
Access an Image Object
You can access an <img> element by using getElementById():
Example(1)
<img id="myImg" src="img_pulpit.jpg" alt="The Pulpit Rock" width="304" height="228">
<button onclick="get_url()">click it</button>
<p id="demo"></p>
<script>
function get_url() {
var x = document.getElementById("myImg").src;
document.getElementById("demo").innerHTML = x;
}
</script>
In above example when you click button you get url of image
Example(2)
<button onclick="add_image()">Try it</button>
<script>
function add_image() {
var x = document.createElement("IMG");
x.setAttribute("src", "img_pulpit.jpg");
x.setAttribute("width", "304");
x.setAttribute("height", "228");
x.setAttribute("alt", "The Pulpit Rock");
document.body.appendChild(x);
}
</script>
Image Object Properties
| Property | Description |
|---|---|
| align | Not supported in HTML5. Use style.cssFloat instead. Sets or returns the value of the align attribute of an image |
| alt | Sets or returns the value of the alt attribute of an image |
| border | Not supported in HTML5. Use style.border instead. Sets or returns the value of the border attribute of an image |
| complete | Returns whether or not the browser is finished loading an image |
| crossOrigin | Sets or returns the CORS settings of an image |
| height | Sets or returns the value of the height attribute of an image |
| hspace | Not supported in HTML5. Use style.margin instead. Sets or returns the value of the hspace attribute of an image |
| isMap | Sets or returns whether an image should be part of a server-side image-map, or not |
| longDesc | Not supported in HTML5. Sets or returns the value of the longdesc attribute of an image |
| lowsrc | Not supported in HTML5. Sets or returns a URL to a low-resolution version of an image |
| name | Not supported in HTML5. Use id instead. Sets or returns the value of the name attribute of an image |
| naturalHeight | Returns the original height of an image |
| naturalWidth | Returns the original width of an image |
| src | Sets or returns the value of the src attribute of an image |
| useMap | Sets or returns the value of the usemap attribute of an image |
| vspace | Not supported in HTML5. Use style.margin instead. Sets or returns the value of the vspace attribute of an image |
| width | Sets or returns the value of the width attribute of an image |
<!DOCTYPE html>
<html>
<head>
<title>How To Create HTML DOM Image Object Using Java Script</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>
<body>
<div class="container">
<br>
<div class="text-center">
<h1 style="color: tomato">How To Create HTML DOM Image Object Using Java Script</h1>
</div>
<div class="well">
<img id="myImg" src="../image/demo5.jpg" alt="The Pulpit Rock" width="304" height="228"><br><br>
<button class="btn btn-success" onclick="get_url()">click it</button>
<h2 id="demo"></h2>
<button class="btn btn-success" onclick="add_image()">Try it</button>
<script>
function get_url() {
var x = document.getElementById("myImg").src;
document.getElementById("demo").innerHTML = x;
}
function add_image() {
var x = document.createElement("IMG");
x.setAttribute("src", "../image/demo3.jpg");
x.setAttribute("width", "304");
x.setAttribute("height", "228");
x.setAttribute("alt", "The Pulpit Rock");
document.body.appendChild(x);
}
</script>
</div>
</div>
</body>
</html>