How can I Create an array with N zeros?

Question

I want an array with N zeroes, like

[0,0,0,0...0]

I could do a for-loop and push them all, but is there a nicer way?

var x = []
for (var i = 0; i < N; i++) {
    x.push(0)
};

The version you've shown probably offers the best performance. — Etheryte, Sep 26 '15 at 14:59
It seems that your code currently works, and you are looking to improve it. Generally these questions are too opinionated for this site but you might find better luck at [CodeReview.SE](http://codereview.stackexchange.com/tour). Remember to read [their question requirements](http://codereview.stackexchange.com/help/on-topic) as they are more strict than this site. — Kyll, Sep 26 '15 at 15:01

dimakura · Accepted Answer · 2015-09-26T15:15:26.200

3

var x = new Int8Array(100)
# x now is filled with 0s and is of size 100

The Int8Array typed array represents an array of twos-complement 8-bit signed integers. The contents are initialized to 0.

edited Sep 26 '15 at 15:15

answered Sep 26 '15 at 15:02

dimakura

You should add the new operator: var x = new Int8Array(100); – Danny Fardy Jhonston Bermúdez Sep 26 '15 at 15:15
@DannyFardyJhonstonBermúdez thanks! :) fixed – dimakura Sep 26 '15 at 15:15

1 Answers1