How can I loop through all the entries in an array using JavaScript? I thought it was something like this: forEach(instance in theArray) Where theArray is my array, but this seems to be incorrect....
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I've heard this quite a few times. Are JavaScript loops really faster when counting backward? If so, why? I've seen a few test suite examples showing that reversed loops are quicker, but I can't find any explanation as to why! I'm...
Closures in a loop are causing me problems. I think I have to make another function that returns a function to solve the problem, but I can't get it to work with my jQuery code. Here is the basic problem in a simplified form: function foo(val...
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How can I break the iteration on reduce method? for for (var i = Things.length - 1; i >= 0; i--) { if(Things[i] <= 0){ break; } }; reduce Things.reduce(function(memo, current){ if(current <= 0){ //break ??? //return;...I'm reading the Mozilla developer's site on closures, and I noticed in their example for common mistakes, they had this code: <p id="help">Helpful notes will appear here</p> <p>E-mail: <input type="text&#...
How can I loop through all the entries in an array using JavaScript? I thought it was something like this: forEach(instance in theArray) Where theArray is my array, but this seems to be incorrect....
Is there an easy way to slow down the iteration in a forEach (with plain javascript)? For example: var items = document.querySelector('.item'); items.forEach(function(el) { // do stuff with el and pause before the next el; });...©2020 All rights reserved.