web api instance property
CharacterData: length property
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 data string.
Example
[!NOTE]
CharacterDatais an abstract interface. The examples below useText, a concrete interface implementing it.
Length of the string in the <code>Text</code> node: <output></output>
const output = document.querySelector("output");
const textNode = new Text("This text has been set using 'textNode.data'.");
output.value = textNode.length;
Interactive exampleOpen the canonical MDN source to run this embedded demo.
Specifications
SpecificationsStandards references are available on the canonical MDN page.
Browser compatibility
Browser compatibilityCompatibility data is available on the canonical MDN page.