Draw Tic Tac Toe grid lines

draw-ttt-gird.js

drawGrid(){
  let offset = 5;
  let lineLenght = this.canvas.width - offset;
  this.ctx.lineWidth = this.gridLineWidth;
  this.ctx.lineCap = 'round';
  this.ctx.strokeStyle = this.gridLineStyle;
  this.ctx.beginPath();

  //Horizontal lines 
  for (let y = 1;y <= 2;y++) {  
    this.ctx.moveTo(offset, y * this.cellSize);
    this.ctx.lineTo(lineLenght, y * this.cellSize);
  }

  //Vertical lines 
  for (let x = 1;x <= 2;x++) {
    this.ctx.moveTo(x * this.cellSize, offset);
    this.ctx.lineTo(x * this.cellSize, lineLenght);
  }

  this.ctx.stroke();
}