How to generate sequence of numbers/chars in javascript?

Question

Is there a way to generate sequence of characters or numbers in javascript?

For example, I want to create array that contains eight 1s. I can do it with for loop, bu

Answer 1

Without a for loop, here is a solution:

Array.apply(0, Array(8)).map(function() { return 1; })

The explanation follows.

Array(8) produces a sparse array with 8 elements, all undefined. The apply trick will turn it into a dense array. Finally, with map, we replace that undefined the (same) value of 1.