To get the width and height of the browser window, you can use the innerWidth
and innerHeight
properties of the window
object.
The innerWidth
and innerHeight
properties return the width and height of the window's content area.
Here is an example:
const width = window.innerWidth;
const height = window.innerHeight;
The above solution works in all modern browsers, and IE9 and up.
To support IE8 and earlier(seriously?), you can use the clientWidth
and clientHeight
properties too:
const width = window.innerWidth ||
document.documentElement.clientWidth ||
document.body.clientWidth;
const height = window.innerHeight ||
document.documentElement.clientHeight ||
document.body.clientHeight;
ES11 globalThis
ECMAScript 2020 (ES11) introduced the globalThis
variable that refers to the global this
context on which the code is running.
For example, in web browsers, globalThis
refers to this
and in a Node.js application, globalThis
will be global
.
You can use globalThis
to get the width and height of the window's content area as well as outer area:
// content area
const width = globalThis.innerWidth;
const height = globalThis.innerHeight;
// outer area
const width = globalThis.outerWidth;
const height = globalThis.outerHeight;
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