http://www.bing.com:80/search?q=JavaScript+NodeList+ForeachZoekresultatenhttp://www.bing.com:80/s/a/rsslogo.gifhttp://www.bing.com:80/search?q=JavaScript+NodeList+ForeachCopyright © 2026 Microsoft. Alle rechten voorbehouden. Deze XML-resultaten mogen niet worden gebruikt, gereproduceerd of verzonden op enige manier met welk doel dan ook, behalve als het gaat om het weergeven van Bing-resultaten in een RSS-lezer voor persoonlijk, niet-commercieel gebruik. Voor andere vormen van gebruik is nadrukkelijke, schriftelijke toestemming vereist van Microsoft Corporation. Door deze webpagina te openen en deze resultaten op welke manier dan ook te gebruiken, stemt u in met deze beperkingen.https://stackoverflow.com/questions/13433799/why-doesnt-nodelist-have-foreachNodeList now has forEach () in all major browsers See nodeList forEach () on MDN. Original answer None of these answers explain why NodeList doesn't inherit from Array, thus allowing it to have forEach and all the rest. The answer is found on this es-discuss thread. In short, it breaks the web: The problem was code that incorrectly assumed instanceof to mean that the instance was an Array in ...wo, 08 apr. 2026 15:11:00 GMThttps://stackoverflow.com/questions/56990500/javascript-iterate-through-nodelist5 Although NodeList is not an Array, it is possible to iterate over it with forEach () See also Why doesn't nodelist have forEach?di, 07 apr. 2026 04:21:00 GMThttps://stackoverflow.com/questions/37533511/javascript-foreach-on-nodelistThat's why using forEach.call like that works: The call method on function objects (forEach is a function object) calls the function using the first argument you give call as this during the call, and passing along the following arguments as the arguments to the original function.zo, 08 mrt. 2026 00:53:00 GMThttps://stackoverflow.com/questions/14779878/how-to-iterate-through-a-nodelist-functional-styleI frequently want to iterate through a NodeList with forEach or map. My simplified code works like this: var nodeListMap = Array.prototype.map; var els = document.querySelectorAll('.classname');za, 04 apr. 2026 12:17:00 GMThttps://stackoverflow.com/questions/24775725/loop-through-childnodesA hack that can be used is NodeList.prototype.forEach = Array.prototype.forEach and you can then use forEach with any NodeList without having to convert them each time.za, 04 apr. 2026 01:54:00 GMThttps://stackoverflow.com/questions/9329446/loop-for-each-over-an-array-in-javascriptIt doesn't have to be marked iterable; that is used only for collections that, in addition to being iterable, support forEach, values, keys, and entries methods. NodeList does; HTMLCollection doesn't, but both are iterable.) Here's an example of looping through div elements:zo, 05 apr. 2026 09:10:00 GMThttps://stackoverflow.com/questions/59291030/iterating-through-nodelistWhat is the best method to iterate over a NodeList? I'm partial to backwards compatibility and clean smelling code, but if your answer also works for any of the other criteria below, that would be appreciated. Readability Future Proofing Speed I've looked at JavaScript iterate through NodeList, which goes over a few methods.vr, 03 apr. 2026 09:33:00 GMThttps://stackoverflow.com/questions/7459704/in-javascript-what-is-the-best-way-to-convert-a-nodelist-to-an-arrayThe DOM method document.querySelectorAll() (and a few others) return a NodeList. To operate on the list, e.g. using forEach(), the NodeList must first be converted to an Array.vr, 10 apr. 2026 04:17:00 GMThttps://stackoverflow.com/questions/43449971/loop-through-nodelist-array-prototype-foreach-call-vs-array-from-foreach4 Array.prototype.forEach.call(nodeList, callback) will apply the logic of forEach on the node list. forEach just have a for loop in it that goes from index 0 to this.length and calling a callback on each of the items.ma, 09 mrt. 2026 04:41:00 GMThttps://stackoverflow.com/questions/35969974/foreach-is-not-a-function-error-with-javascript-arrayArray.prototype.forEach.call(allParagraphs , function(el) { // Write your code here }) Personally, I've tried several ways but most of them didn't work as I wanted to loop over a NodeList, but this one works like a charm, give it a try! The NodeList isn't an Array, but we treat it as an Array, using Array. So, you need to know that it is not supported in older browsers! Need more information ...do, 09 apr. 2026 20:03:00 GMT