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Tech Stuff - DOM removeChild

W3C Core Reference. Part of the Node Interface

removeChild Method

Removes the specified thing (an element/node/object) from the referenced node.

Syntax

oldthing = node.removeChild(thing)

Related Stuff

appendChild method

Parameters

Name Description Notes
node the node to be removed

Examples

// get a reference to an existing object
obj = document.getElementById("one");
// empty this object of its children
nodelist = obj.childNodes;
// now loop and remove them all
c = nodelist.length;	// needed because changes dynamically
for(i = 0; i < c; i++)
{
  this_node = nodelist[0];	// reference changes dynamically
  removed_node = obj.removeChild(this_node);
}
	
// alternate method
while(obj.hasChildNodes() == true)
{
  obj.removeChild(obj.childNodes[0]);
}

The code fragment above shows two versions of a loop which empties a node of all its child nodes.

Notes:

The number of nodes changes dynamically so in the first fragment we could not have placed the nodelist.length in the 'for' loop because, since it is evaluated each time, the loop would terminate early.



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