Jul 29, 2009 · The third way of initializing is useful when you declare an array first and then initialize it, pass an array as a function argument, or return an array. The explicit type is required.

Why go through the trouble of Array.apply(null, {length: N}) instead of just Array(N)? After all, both expressions would result an an N -element array of undefined elements. The difference is that in the …

Sep 29, 2011 · An illustration. Suppose that array contains three integers, 0, 1, 2, and that i is equal to 1. array[i]++ changes array[1] to 2, evaluates to 1 and leaves i equal to 1. array[i++] does not modify …

There are plenty of applications for both approaches; it just depends on what you're using the array for. If you iterate over an array with for.. of, the body of the loop is executed length times, and the loop …

Another difference is that when using new Array() you're able to set the size of the array, which affects the stack size. This can be useful if you're getting stack overflows (Performance of Array.push vs …

Jul 25, 2012 · When creating a 2D array, how does one remember whether rows or columns are specified first?

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

Feb 25, 2009 · I am looking for a JavaScript array insert method, in the style of: arr.insert(index, item) It should preferably be in jQuery, but any JavaScript implementation will do at this point.

Oct 24, 2010 · I have recently been thinking about the difference between the two ways of defining an array: int[] array int array[] Is there a difference?

How would you use memset to initialize a int array to some value larger than 255? memset only works if the array is byte sized.