What is the difference between a HTMLCollection and a NodeList in DOM? [duplicate]

StackOverflow https://stackoverflow.com/questions/15627385

  •  29-03-2022
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Question

I tried my Google-fu but I can't seem to find any good answer to that question. Please help.

EDIT: Ok so I found this blog post. So they come from different DOM levels, but besides that it doesn't say much...

Was it helpful?

Solution

As you said, NodeList is defined in DOM-Level-3-Core and HTMLCollection in DOM-Level-2-HTML.

Their interfaces are :

interface HTMLCollection {
  readonly attribute unsigned long   length;
  Node               item(in unsigned long index);
  Node               namedItem(in DOMString name);
};

interface NodeList {
  Node               item(in unsigned long index);
  readonly attribute unsigned long   length;
};

So NodeList is a successor of HTMLCollection in a more generic form (for xml).

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