javascript - 将多个元素推送到数组(push multiple elements to array)

Question

I'm trying to push multiple elements as one array, but getting error(我试图将多个元素作为一个数组推送，但是会出错)

> a = [] [] > a.push.apply(null, [1,2]) TypeError: Array.prototype.push called on null or undefined I'm trying to do similar stuff that I'd do in ruby, I was thinking that apply is something like * .(我正在尝试做类似我在ruby中做的事情，我认为apply就像* 。) >> a = [] => [] >> a.push(*[1,2]) => [1, 2]   ask by evfwcqcg translate from so

Answer 1

You can push multiple elements into an array in the following way(您可以通过以下方式将多个元素推送到数组中)

var a = []; a.push(1, 2, 3); console.log(a);