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CharacterData: length property

files/en-us/web/api/characterdata/length/index.md

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{{APIRef("DOM")}}

The read-only CharacterData.length property returns the number of characters in the contained data, as a positive integer.

Value

A positive integer with the length of the {{domxref("CharacterData.data")}} string.

Example

[!NOTE] {{domxref("CharacterData")}} is an abstract interface. The examples below use {{domxref("Text")}}, a concrete interface implementing it.

html
Length of the string in the <code>Text</code> node: <output></output>
js
const output = document.querySelector("output");
const textNode = new Text("This text has been set using 'textNode.data'.");

output.value = textNode.length;

{{EmbedLiveSample("Example", "100%", 50)}}

Specifications

{{Specifications}}

Browser compatibility

{{Compat}}