Jun 10, 2010 · 133 In JavaScript it's not advisable to loop through an Array with a for-in loop, but it's better to use a for loop such as:

Feb 17, 2012 · How can I loop through all the entries in an array using JavaScript?

Apr 15, 2009 · That's the magic, and frustration, of closure. "JavaScript Functions close over the scope they are declared in, and retain access to that scope even as variable values inside of that scope …

869 for in loops over enumerable property names of an object. for of (new in ES6) does use an object-specific iterator and loops over the values generated by that. In your example, the array iterator does …

for (var j = 0; j < myArray.length; j++){ console.log(myArray[j]); } The console should bring up every object in the array, right? But in fact it only displays the first object. if I console log the array outside …

For an excellent resource on for-in loops I recommend Mozilla Developer Network So, what are for-of loops then? For-of loops are syntactically (i.e. the way you write them) very similar to for-in loops:

Apr 5, 2016 · Understanding nested for loops in javascript Asked 9 years, 9 months ago Modified 5 years, 11 months ago Viewed 101k times

Dec 3, 2016 · How can I build a loop in JavaScript? for (i in things) { // If things is an array, i will usually contain the array keys *not advised* // If things is an object, i will contain the member names // Either …

Oct 11, 2016 · A for loop can also be used like a while loop, exp: for(;!done;) { // do stuff } for loops are multi-use and better in most situations in comparison to a while loop, in terms of performance they …

In the case of nested loops labels could be useful to break out of an outer loop. While it may more elegant and modular to avoid nested loops by moving inner loops to separate functions, it will run …