確認例

確認例

#0000CDで塗る
▼index.html

<canvas id="canv" width="500px" height="500px"></canvas>



<script>

var COL = 8;

var RECT_CANV = {

   x: 0,

   y: 0,

   w: 500,

   h: 500

};

var CELL_SIZE = RECT_CANV.w / COL | 0;

var COLOR_SELECT = "#0000CD";



var ctx = document.getElementById("canv").getContext('2d');



for (var x = 0; x < COL; x++) {

    for (var y = 0; y < COL; y++) {

        ctx.fillStyle = COLOR_SELECT;

        ctx.fillRect(x * CELL_SIZE, y * CELL_SIZE, CELL_SIZE, CELL_SIZE);

    }

}

</script>