prime_fact.js

function createSieve(length) {
    // @ts-ignore
    var sieve = new Array(length).fill(-1);
    for (var i = 1; i < length; i++) {
        var number = i + 1;
        if (sieve[i] === -1) {
            for (var j = i + number; j < length; j += number) {
                if (sieve[j] === -1)
                    sieve[j] = number;
            }
        }
    }
    // let i: number, j: number, tempArray: number[], chunk: number = 10;
    // for (i = 0, j = length; i < j; i += chunk) {
    //     tempArray = sieve.slice(i, i + chunk);
    //     console.log(tempArray)
    // }
    return sieve;
}
var sieve = createSieve(100000);
// console.log(createSieve(50));
function primeFactorise(num) {
    // const sieve: number[] = createSieve(num);
    var factorsMap = {};
    while (sieve[num - 1] !== -1) {
        var factor = sieve[num - 1];
        num /= factor;
        (factorsMap[factor]) ? factorsMap[factor] += 1 : factorsMap[factor] = 1;
    }
    (factorsMap[num]) ? factorsMap[num] += 1 : factorsMap[num] = 1;
    console.log(factorsMap);
}
primeFactorise(50);
primeFactorise(61);
primeFactorise(3);
primeFactorise(86240);
// console.log(50)




function addTimes(time1, time2) {
  
  const secs = (time1[2] + time2[2]) % 60
  const mins = (time1[1] + time2[1] + Math.floor((time1[2] + time2[2]) / 60)) % 60
  const hours = (time1[0] + time2[0] + Math.floor((time1[1] + time2[1] + ((time1[2] + time2[2]) % 60))/60) ) % 24
  console.log(secs, mins, hours)
}