Company Challenges: Uber

fareEstimator.js

function checkIsUndefined(x) {
	if (x.length === undefined) {
  	return 1
  }
  return x.length
}

function fareEstimator(ride_time, ride_distance, cost_per_minute, cost_per_mile) {
	let result = []
	let c_ride_time = checkIsUndefined(ride_time)
	let c_ride_distance = checkIsUndefined(ride_distance)
	let c_cost_per_minute = checkIsUndefined(cost_per_minute)
	let c_cost_per_mile = checkIsUndefined(cost_per_mile)
	
	let highestArr = Math.max(c_ride_time, c_ride_distance, c_cost_per_minute, c_cost_per_mile)

	for (i = 0; i < highestArr; i++) {
  	result[i] = +(ride_time * cost_per_minute[i] + ride_distance * cost_per_mile[i]).toFixed(2)
  }
  return result
}