Invert values.js

// Given a set of numbers, return the additive inverse of each.
//  Each positive becomes negatives, and the negatives become positives.

// invert([1,2,3,4,5]) == [-1,-2,-3,-4,-5]
// invert([1,-2,3,-4,5]) == [-1,2,-3,4,-5]
// invert([]) == []
// You can assume that all values are integers. 
// Do not mutate the input array/list.

///////////// Solution //////////////

function invert(array) {
    return array.map(v => -v);
 }