e-mihaylin

//https://www.codewars.com/kata/596d34df24a04ee1e3000a25
const countOnes = (a, b) => cab(b) - cab(a - 1);

const cab = n => {
  let bits = 0;
  for (let i = 0; i < 30; ++i) 
    bits += ccb(i, n);
  return bits;
}

e-mihaylin

class Calculator {
  evaluate (s) {
    s = s.replace(/\s/g, '');
    const l = s.length;
    const stack = [];
    let i = 0;
    let o = '+';
    while (i < l) {
      const x = s[i];
      if (/\d/.test(x)) {

e-mihaylin

const lcm = (...a) => {
  const gcd = (a, b) => b === 0 ? a : gcd(b, a % b);
  const lcm = (a, b) => a * b / gcd(a, b);
  return a.reduce(lcm);
}