js-tests
Just clone or fork, and npm i!
Solutions
No peeking!
These may not be the best solutions. I'm welcome to better/ more performant ones :D
It would be good to have a list of different code styles, and see how they each evolve as the test grow.
grid.test
findPosition()
const findY = grid => grid.findIndex(row => row.includes(1))
const findX = grid => grid[findY(grid)].indexOf(1);
const findPosition = grid => ({
x: findX(grid),
y: findY(grid)
});