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How to know if two arrays have the same values

I have these two arrays: one is filled with information from an ajax request and another stores the buttons the user clicks on. I use this code (I filled with sample numbers):

JavaScript

But it always gives false, even if the two arrays are the same, but with different name. (I checked this in Chrome’s JS Console). So, is there any way I could know if these two arrays contain the same? Why is it giving false? How can I know which values in the first array are not in the second?

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Answer

Sort the arrays and compare their values one by one.

JavaScript
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