#29 - Ones' Complement CodeWars Kata (7 kyu)

Instructions

The Ones' Complement of a binary number is the number obtained by swapping all the 0s for 1s and all the 1s for 0s. For example:

onesComplement(1001) = 0110
onesComplement(1001) = 0110

For any given binary number,formatted as a string, return the Ones' Complement of that number.

My solution:

function onesComplement(n) {
  return n.split('').map(n=>n == '0' ? '1' : '0').join('')
};

Explanation

I splitted the string into an array, and the I mapped it, using a ternary conditional I checked if the number being iterated is '0' it will change it to '0', else it'll change it to '0', and at the end I just joined the array.

What do you think about this solution? 👇🤔

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