BoardData.js

BoardData.js

class BoardData {
  constructor(size = 8) {
    this.size = size;
    this.cells = Array(8).fill(null).map(() => {
      return Array(8).fill(null);
    });
  }

  getRow(i) {
    return this.cells[i];
  }

  getCol(i) {
    return this.cells.map(row => row[i]);
  }

  getCell(row, col) {
    return this.getRow(row)[col];
  }

  hasCellAt(row, col) {
    return Boolean(this.getRow(row)[col]);
  }

  setCell(row, col, val) {
    return this.getRow(row)[col] = val;
  }
}

const b = new BoardData();
b.setCell(2, 2, 'red');
console.log(b.hasCellAt(2, 2));
console.log(b.getCell(2, 2));
console.log(b.getRow(2));
console.log(b.getCol(2));