Function search

matrix/number-of-islands.js:17–29

(grid, row, col)

}

function search(grid, row, col) {
  const stack = [[row, col]];

  while (stack.length > 0) {
    const currentPosition = stack.pop();
    const [currentRow, currentCol] = currentPosition;
    grid[currentRow][currentCol] = "0";
    const neighbors = getNeighbors(grid, currentRow, currentCol);
    for (const neighbor of neighbors) {
      stack.push(neighbor);
    }
  }
}

function getNeighbors(grid, row, col) {
  const neighbors = [];