Is their any clear documentation that outlines what == and === does?

General Usage
2

type ? followed by == or === :slight_smile:

help?> ===
search: === == !==

  ===(x,y) -> Bool
  ≡(x,y) -> Bool

  Determine whether x and y are identical, in the sense that no program could distinguish them. First the
  types of x and y are compared. If those are identical, mutable objects are compared by address in memory
  and immutable objects (such as numbers) are compared by contents at the bit level. This function is
  sometimes called "egal". It always returns a Bool value.

  Examples
  ≡≡≡≡≡≡≡≡≡≡

  julia> a = [1, 2]; b = [1, 2];
  
  julia> a == b
  true
  
  julia> a === b
  false
  
  julia> a === a
  true
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