How to check identical array in most efficient way

Question

I want to check if the two arrays are identical  not content wise  but in exact order    For example    array1    1 2 3 4 5   array2    1 2 3 4 5   array3    3 5 1 2 4    Array 1 and 2 are identical but 3 is not   Is there a good way to do this in JavaScript

User · Answer

You could compare String representations so:

array1.toString() == array2.toString()
array1.toString() !== array3.toString()

but that would also make

array4 = ['1',2,3,4,5]

equal to array1 if that matters to you

User · Answer

So  what s wrong with checking each element iteratively   function arraysEqual arr1  arr2        if arr1 length     arr2 length          return false      for var i   arr1 length  i--             if arr1 i      arr2 i               return false             return true

[javascript] How to check identical array in most efficient way?

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