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JavaScript JavaScript and the DOM Getting a Handle on the DOM Use CSS Queries to Select Page Elements

Posted by Peter Huang
Peter Huang
5,427 Points

how do you spot an HTML Collection?

Is it only when we see " collection[name] " ?

because everything we've been using are " getElementsByTagName " / " querySelector ", etc. Are these node list?

Im a little confused

1 Answer

Steven Parker
Steven Parker
229,644 Points
Steven Parker
Steven Parker
229,644 Points

An HTMLCollection differs from a NodeList primarily in that it is "live", meaning that its contents will be automatically updated whenever the associated parts of the DOM are changed.

On the other hand, a NodeList is typically a static "snapshot" of how things were at the time it is created (though there are some "live" exceptions). A NodeList also has some additional methods not available on an HTMLCollection.

For more details, see these MDN pages on HTMLCollection and NodeList.