I was looking at some snippets of code, and I found multiple elements calling a function over a node list with a forEach applied to an empty array.  For example I have something like:  [].forEach.call( document.querySelectorAll('a'), functi...

Traditionally, a suggested way of removing a node's children in Javascript is to do something like this:  while(node.firstChild) {     node.removeChild(node.firstChild); }   Recently, I attempted to remove all of a node's children using the b...

I am trying to display data from an external .jsp file, which is set up something like this:  <tag>   <innertag1 id="1">   <innertag1 id="2"> </tag> <tag>   <innertag2 id="3">   <innertag...

Why don't getElementsByName, getElementsByTagName, and getElementsByClassName return an HTMLCollection (W3C, MDN) instead of a NodeList (W3C, MDN)?  All three return a live NodeList of only elements:  document.getElementsByName('nameAttrVal&#...

I have what I think should be a straightforward question; let me quickly explain:  In my JavaScript, food.xml is read in with:  getMenuXml.open("GET","food.xml",false); getMenuXml.send(); xmlDoc=getMenuXml.responseXML; xmlFoodList = x...

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When I load my page, a nodeList gets created, and it looks like this:   [text, h4, text, span, br, input, br, span, br, input, br, span, br, input, br, span, br, input, br]   I created a simple for loop that loops through all these elements and delet...

So I want an easy way to loop through nodelists, and I always hated that I can't use forEach on nodeLists.  So, now I do: Array.prototype.forEach.call(nodeList, callback).  and for index, i do: Array.prototype.indexOf.call(nodeList, node).  and f...

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I generally hear that because live NodeLists are "bad" (see this Zakas article) and that informed the decision for querySelectorAll to return a static HTMLCollection. Why do people think live NodeLists are a bad thing? Code examples would pro...