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

Posted by Alejandro Aburto Salazar
Alejandro Aburto Salazar
7,733 Points

I don't believe you can iterate over a NodeList with map()....

Hi,

Just wanted to note that I don't believe you can iterate over a NodeList with map(), contrary to what was mentioned in the video. If you look at the NodeList methods, you can only use forEach().

Cheers.

1 Answer

Steven Parker
Steven Parker
231,269 Points
Steven Parker
Steven Parker
231,269 Points

Good catch, this should be explained in the Teacher's Notes section! You might want to make a bug report as described on the Support page. If you're the first to report it, it may get you the special Exterminator badge. :beetle:

But you can still use array methods (like "map") by converting the nodeList into an array. For example:

let items = document.querySelectorAll("li");
let texts = [...items].map(a => a.textContent);