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599 B

Sign

Instructions

Create the sign function that takes one number argument and return 1 if the number is positive, -1 if the number is negative and 0 if the number is exactly 0 You must not just use Math.sign, make your own.

Create the sameSign function that takes 2 numbers as arguments and check if they both have the same sign

Notions

Code provided

Math.sign = undefined