Question

How to draw a grid of rectangles each in a different color in JavaScript

Answer 1

<canvas id="canvas" width="1024" height="600"></canvas>

<script type="text/JavaScript">   

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

for (var i = 0; i < 7; i++) {
  for (var j = 0; j < 7; j++) {
    ctx.fillStyle = 'rgb(' + Math.floor(255 - 45 * i) + ',' +
                     Math.floor(255 - 45 * j) + ',0)';
    ctx.fillRect(j * 25, i * 25, 25, 25);
  }
}
 

</script>

 

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