CharacterData: replaceData() method
        
        
          
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      This feature is well established and works across many devices and browser versions. It’s been available across browsers since July 2015.
The replaceData() method of the CharacterData interface removes a certain number of characters of the existing text in a given CharacterData node and replaces those characters with the text provided.
Syntax
js
replaceData(offset, count, data)
Parameters
Return value
None.
Exceptions
- IndexSizeError- DOMException
- 
Thrown if offsetorcountis negative oroffsetis greater than the length of the contained data.
Example
html
<span>Result: </span>A long string.
js
const span = document.querySelector("span");
const textNode = span.nextSibling;
textNode.replaceData(2, 4, "replaced");
Specifications
| Specification | 
|---|
| DOM> # dom-characterdata-replacedata> | 
Browser compatibility
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