<canvas width="600" height="400"></canvas>
<script>
function desenhaQuadrado(x, y, tamanho, cor) {
var tela = document.querySelector ("canvas");
var pincel = tela.getContext ("2d");
for (var contador = 1; contador <tamanho ; contador ++){
pincel.fillStyle = cor;
pincel.fillRect (x,y,50,50);
pincel.fillStrokes = "black";
pincel.strokeRect (x,y,50,50);
x = x + 50
}
pincel.fillStyle = "white";
pincel.fillRect (x,y,50,50);
pincel.fillStrokes = "black";
pincel.strokeRect (x,y,50,50);
}
desenhaQuadrado (200,300,6,"blue");
</script>
