closest_elevator.js

// Description:
// Given 2 elevators (named "left" and "right") in a building with 3 floors (numbered 0 to 2), write a function accepting 3 arguments (in order):
// left - The current floor of the left elevator
// right - The current floor of the right elevator
// call - The floor that called an elevator
// It should return the name of the elevator closest to the called floor ("left"/"right").
// In the case where both elevators are equally distant from the called floor, choose the elevator to the right.
// You can assume that the inputs will always be valid integers between 0-2.
// Examples:
// left right call   result
//   0    1     0    "left"
//   0    1     1    "right"
//   0    1     2    "right"
//   0    0     0    "right"
//   0    2     1    "right"

// SOLUTION:

function elevator(left, right, call) {
    return (call === left && call !== right || left > call && left < right || left > right && left < call) ? 'left' : 'right';
}