Refactors, again

[triallax]

• Switched -> and :: to their Unicode counterparts, to be consistent with the rest of the codebase
• Use === instead of ==, see https://stackoverflow.com/questions/359494/which-equals-operator-vs-should-be-used-in-javascript-comparisons/359509#359509
• Use <> instead of : for arrays
• Other minor refactors

[triallax]

@sharkdp you're welcome, but I think I'm beginning to run out of cleanups to do. :P