The Window innerWidth property is used for returning the width of a window's content area. It is a read-only property and returns a number which represents the width of the browser window's content area in pixels.
Syntax
window.innerWidthReturn Value:
It returns a number that represents the browser window's content area width in pixels.
Example: This example shows the use of "window.innerWidth" property.
<!DOCTYPE html>
<html>
<head>
<title>
Window innerWidth Property in HTML
</title>
<style>
h1 {
color: green;
}
body {
text-align: center;
}
</style>
</head>
<body>
<h1>GeeksforGeeks</h1>
<h2>Window innerWidth Property</h2>
<p>
For returning the current frame's width,
double click the "Check Width" button:
</p>
<button onclick="width()">Check Width</button>
<p id="measure"></p>
<script>
function width() {
let w = window.innerWidth;
document.getElementById("measure").innerHTML =
"Frame's Width: " + w;
}
</script>
</body>
</html>
Output:
Supported Browsers
- Google Chrome 1
- Edge 12
- Internet Explorer 9
- Firefox 1
- Opera 9
- Safari 3