This feature is well established and works across many devices and browser versions. It’s been available across browsers since May 2018.
The Document.body property represents the <body> or <frameset> node of the current document, or null if no such element exists.
One of the following:
// Given this HTML: <body id="oldBodyElement"></body>
alert(document.body.id); // "oldBodyElement"
const newBodyElement = document.createElement("body");
newBodyElement.id = "newBodyElement";
document.body = newBodyElement;
alert(document.body.id); // "newBodyElement"
document.body is the element that contains the content for the document. In documents with <body> contents, returns the <body> element, and in frameset documents, this returns the outermost <frameset> element.
Though the body property is settable, setting a new body on a document will effectively remove all the current children of the existing <body> element.
| Specification |
|---|
| HTML> # dom-document-body-dev> |
| Desktop | Mobile | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Chrome | Edge | Firefox | Opera | Safari | Chrome Android | Firefox for Android | Opera Android | Safari on IOS | Samsung Internet | WebView Android | WebView on iOS | |
body |
1 | 12 | 60 | 9.6 | 1 | 18 | 60 | 10.1 | 1 | 1.0 | 4.4 | 1 |
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https://developer.mozilla.org/en-US/docs/Web/API/Document/body