Question

Write a function that counts the number of 1s in the binary notation of the given number?
function countOnesInBinary( n ){ //write your code here }
Login to Submit

Input: 12
Output: 2
Reason: 12 in binary is 1100. So there are two ones.

Input: 7
Output: 3
Reason: 3 in binary is 111. So there are three ones.