Time Units Converter

convertTime.js

// you can write to stdout for debugging purposes, e.g.
// console.log('this is a debug message');

const MINUTE = 60
const HOUR = MINUTE * 60
const DAY = HOUR * 24
const WEEK = DAY * 7

function solution(time) {
    const result = calculate(time)
    if(result===""){
        return "0s"
    }
    return result;
}

function calculate(time) {
    if(time <= 1) {
        return "";
    }
    else if(time < MINUTE) {
        return `${time}s`
    }
    else if(time < HOUR) {
        const seconds = time % MINUTE;
        const minutes = Math.floor(time/MINUTE);
        return `${minutes}m${calculate(seconds)}`;
    }
    else if(time < DAY) {
        const seconds = time % HOUR;
        const hours = Math.floor(time/HOUR);
        return `${hours}h${calculate(seconds)}`;
    }
    else if(time < WEEK) {
        const seconds = time % DAY;
        const days = Math.floor(time/DAY);
        return `${days}d${calculate(seconds)}`;
    }
    else {
        const seconds = time % WEEK;
        const weeks = Math.floor(time/WEEK);
        return `${weeks}w${calculate(seconds)}`;
    }
}