mars rover controller

marsrover.js

// We have a space exploration vehicle called “Creativity” that was sent to Mars some time ago. We can drive it from Earth by sending a planned route to the vehicle. Route is a sequence of characters, each of which changes the position of the vehicle by at most one coordinate on a two-dimensional grid. Given the route, we want to know how many times the vehicle crosses the starting point of the trip.

// Write a function ‘check(route)’ that returns the number of times the vehicle was in the starting point. ‘route’ is a string parameter composed of characters ‘W’, ‘A’, ‘S’, ‘D’, ‘Q’, ‘Z’, ‘E’, ‘C’. Each character defines a move, as described belo
const orders = {
  W: (x,y) => ({x, y: y+1}),
  A: (x,y) => ({x: x-1,y}),
  S: (x,y) => ({x,y: y-1}),
  D: (x,y) => ({x: x+1,y}),
  Q: (x,y) => ({x: x-1, y: y+1}),
  Z: (x,y) => ({x: x-1, y: y-1}),
  E: (x,y) => ({x: x+1, y: y+1}),
  C: (x,y) => ({x: x+1, y: y-1})
}

function check(route) {
  let x=0 , y= 0, count =1
  route.split('').map(direction => {

      console.log("x,y",x,y);
     ({x,y} = orders[direction](x,y))
      if(x===0 && y===0) {
        count ++
      }     
  })
  return count 
}
check("WA")