return-negative.md

Return Negative ^{8 Kyu}

^{LINK TO THE KATA - FUNDAMENTALS}

Description

In this simple assignment you are given a number and have to make it negative. But maybe the number is already negative?

Examples

makeNegative(1) // return -1
makeNegative(-5) // return -5
makeNegative(0) // return 0
makeNegative(0.12) // return -0.12

Notes

• The number can be negative already, in which case no change is required.
• Zero (0) is not checked for any specific sign. Negative zeros make no mathematical sense.

Solution

const makeNegative = num => (num < 0 ? num : num * -1)