Kangaroo Hackerrank Challenge: https://www.hackerrank.com/challenges/kangaroo/problem?isFullScreen=true

kangaroo.js

/*
 * Complete the 'kangaroo' function below.
 *
 * The function is expected to return a STRING.
 * The function accepts following parameters:
 *  1. INTEGER x1
 *  2. INTEGER v1
 *  3. INTEGER x2
 *  4. INTEGER v2
 */

function kangaroo(x1, v1, x2, v2) {
     let result = 'NO';
    for (let i = 0; i < 10000; i++) {
        //calculates the positions of the kangaroos after a given number of jumps and test if the postions are equal
        if (x1+v1*i === x2+v2*i) {
             return 'YES';
        }
    }
    return result;
}