Codility FrogJmp Exercise Solution (JavaScript/NodeJS)

solution_codility_frogjmp.js

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

function solution(X, Y, D) {
    // write your code in JavaScript (Node.js 8.9.4)
    
    if (X >= Y) {
        return 0
    } else if (X === Y) {
        return 0
    } else if (D >= (Y-X)) {
        return 1
    } else {
        minimalJumps = parseInt((Y-X) / D)
        minimalJumps += ((Y-X)%D > 0 ? 1 : 0)
        return minimalJumps
    }
}

A faster and cleaner solution

function solution(X, Y, D) {
  return Math.ceil((Y - X) / D);
}

@yamankatby Yeah, you are right!