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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

normalize()

Parameters

None.

Return value

None.

Example

<output id="result"></output>

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`	1	12	1	≤12.1	1	18	4	≤12.1	1	1.0	4.4	1