Node.replaceChild()

The Node.replaceChild() method replaces a child node within the given (parent) node.

Syntax

parentNode.replaceChild(newChild, oldChild);

Parameters

newChild
The new node to replace oldChild. If it already exists in the DOM, it is first removed.
oldChild
The child to be replaced.

Return value

The returned value is the replaced node. This is the same node as oldChild.

Example

// Given:
// <div>
//  <span id="childSpan">foo bar</span>
// </div>

// Create an empty element node
// without an ID, any attributes, or any content
var sp1 = document.createElement("span");

// Give it an id attribute called 'newSpan'
sp1.id = "newSpan";

// Create some content for the new element.
var sp1_content = document.createTextNode("new replacement span element.");

// Apply that content to the new element
sp1.appendChild(sp1_content);

// Build a reference to the existing node to be replaced
var sp2 = document.getElementById("childSpan");
var parentDiv = sp2.parentNode;

// Replace existing node sp2 with the new span element sp1
parentDiv.replaceChild(sp1, sp2);

// Result:
// <div>
//   <span id="newSpan">new replacement span element.</span>
// </div> 

Specifications

Specification Status Comment
DOM
The definition of 'Node: replaceChild' in that specification.
Living Standard

Browser compatibility

Update compatibility data on GitHub
DesktopMobile
ChromeEdgeFirefoxInternet ExplorerOperaSafariAndroid webviewChrome for AndroidFirefox for AndroidOpera for AndroidSafari on iOSSamsung Internet
replaceChildChrome Full support 1Edge Full support 12Firefox Full support 1IE Full support 9Opera Full support 2Safari Full support YesWebView Android Full support 1Chrome Android Full support 18Firefox Android Full support 4Opera Android Full support YesSafari iOS Full support YesSamsung Internet Android Full support 1.0

Legend

Full support  
Full support

See also