path-intersects.js

function pathIntersectsObstacle(start, end, obstacles) {
  // Convert the starting and ending coordinates to grid coordinates
  let {x:startX, y:startY} = start;
  let {x:endX, y:endY} = end;

  // Get the coordinates of all points on the path
  let path = getPath(startX, startY, endX, endY);

  //get the points in the array that are within the list of obstacles
  let instersections =  path.filter( point => !!obstacles.find( o => o.x == point[0] && o.y == point[1]) ).length
  return instersections
}