create an 2d array and fill it with something

create2DArray.js

// Just a utility function I thought of you could use it for some graph problem, or if you are building a board state for minesweeper 
// or for whatever you need.....

function create2DArray(n,fillWith) {
  return Array.from({length:n},()=>Array.from({length:n},()=>fillWith));
}

// Usage create2DArray(2,0)
/*
[
[0,0],
[0,0]
]

*/