Count minimal number of jumps from position X to Y.

codility-frog-jump.js

// codility test prep questions
// A small frog wants to get to the other side of the road. The frog is currently located at position X 
// and wants to get to a position greater than or equal to Y. The small frog always jumps a fixed distance, D.
// Count the minimal number of jumps that the small frog must perform to reach its target.
// Given X = 10, Y = 85, D = 30
// the function should return 3

function numberOfFrogJumps(x,y,d){
    var distanceRequired = y-x;
    var jumps = Math.ceil(distanceRequired/30)
    return jumps
}

numberOfFrogJumps(10, 85, 30) // returns 3