Node: normalize() method

Baseline Widely available

This feature is well established and works across many devices and browser versions. It’s been available across browsers since July 2015.

The normalize() method of the Node interface puts the specified node and all of its sub-tree into a normalized form. In a normalized sub-tree, no text nodes in the sub-tree are empty and there are no adjacent text nodes.

Syntax

js
normalize()

Parameters

None.

Return value

None.

Example

html
<output id="result"></output>
js
const wrapper = document.createElement("div");

wrapper.appendChild(document.createTextNode("Part 1 "));
wrapper.appendChild(document.createTextNode("Part 2 "));

let node = wrapper.firstChild;
let result = "Before normalization:\n";
while (node) {
  result += ` ${node.nodeName}: ${node.nodeValue}\n`;
  node = node.nextSibling;
}

wrapper.normalize();

node = wrapper.firstChild;
result += "\n\nAfter normalization:\n";
while (node) {
  result += ` ${node.nodeName}: ${node.nodeValue}\n`;
  node = node.nextSibling;
}

const output = document.getElementById("result");
output.innerText = result;

Specifications

Specification
DOM
# ref-for-dom-node-normalize①

Browser compatibility

desktop mobile
Chrome
Edge
Firefox
Opera
Safari
Chrome Android
Firefox for Android
Opera Android
Safari on iOS
Samsung Internet
WebView Android
WebView on iOS
normalize
Chrome – Full support
Chrome 1 (Release date: 2008-12-11)
footnote Full support
Edge – Full support
Edge 12 (Release date: 2015-07-29)
footnote Full support
Firefox – Full support
Firefox 1 (Release date: 2004-11-09)
footnote Full support
Opera – Full support
Opera 12.1 (Release date: 2012-11-20)
footnote Full support
Safari – Full support
Safari 1 (Release date: 2003-06-23)
footnote Full support
Chrome Android – Full support
Chrome Android 18 (Release date: 2012-06-27)
footnote Full support
Firefox for Android – Full support
Firefox for Android 4 (Release date: 2011-03-29)
footnote Full support
Opera Android – Full support
Opera Android 12.1 (Release date: 2012-10-09)
footnote Full support
Safari on iOS – Full support
Safari on iOS 1 (Release date: 2007-06-29)
footnote Full support
Samsung Internet – Full support
Samsung Internet 1 (Release date: 2013-04-27)
footnote Full support
WebView Android – Full support
WebView Android 4.4 (Release date: 2013-12-09)
footnote Full support
WebView on iOS – Full support
WebView on iOS 1 (Release date: 2007-06-29)
footnote Full support

Legend

Tip: you can click/tap on a cell for more information.

Full support
Full support

See also