Function wallsAndGates

javascript/0286-walls-and-gates.js:7–18

(rooms)

 * @return {void} Do not return anything, modify rooms in-place instead.
 */
var wallsAndGates = function (rooms) {
    const [rows, cols] = [rooms.length, rooms[0].length];

    for (let row = 0; row < rows; row++) {
        for (let col = 0; col < cols; col++) {
            const isGate = rooms[row][col] === 0;
            if (!isGate) continue;

            dfs(rooms, row, col);
        }
    }
};

const dfs = (rooms, row, col) => {
    const [rows, cols] = [rooms.length, rooms[0].length];