How to check if two arrays are equal with JavaScript? [duplicate]

Answer 1

Even if this would seem super simple, sometimes it's really useful. If all you need is to see if two arrays have the same items and they are in the same order, try this:

[1, 2, 3].toString() == [1, 2, 3].toString()
true
[1, 2, 3,].toString() == [1, 2, 3].toString()
true
[1,2,3].toString() == [1, 2, 3].toString()
true

However, this doesn't work for mode advanced cases such as:

[[1,2],[3]].toString() == [[1],[2,3]].toString()
true

It depends what you need.