How to use 'javascript drawrect' in JavaScript

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452function drawRect() {
453 var g = createGraphics();
454 var shape = g.getGraphicsData();
455
456 g.drawRect(0, 0, 100, 100);
457 eq(shape.styles.length, 0, "path commands don't write style data");
458 eq(shape.commands[0], PathCommand.LineTo, "1. lineTo command is stored");
459 eq(shape.coordinates[0], 100 * 20, "x is stored correctly");
460 eq(shape.coordinates[1], 0 * 20, "y is stored correctly");
461 eq(shape.commands[0], PathCommand.LineTo, "2. lineTo command is stored");
462 eq(shape.coordinates[2], 100 * 20, "x is stored correctly");
463 eq(shape.coordinates[3], 100 * 20, "y is stored correctly");
464 eq(shape.commands[0], PathCommand.LineTo, "3. lineTo command is stored");
465 eq(shape.coordinates[4], 0 * 20, "x is stored correctly");
466 eq(shape.coordinates[5], 100 * 20, "y is stored correctly");
467 eq(shape.commands[0], PathCommand.LineTo, "4. lineTo command is stored");
468 eq(shape.coordinates[6], 0 * 20, "x is stored correctly");
469 eq(shape.coordinates[7], 0 * 20, "y is stored correctly");
470 eq(shape.commandsPosition, 4, "instructions didn't write more data than expected");
471 eq(shape.coordinatesPosition, 8, "instructions didn't write more data than expected");
472
473 g.drawRect(200, 200, 100, 100);
474 eq(shape.commands[4], PathCommand.MoveTo, "moveTo command is stored if rect doesn't " +
475 "start at previous cursor coordinates");
476 eq(shape.coordinates[8], 200 * 20, "x is stored correctly");
477 eq(shape.coordinates[9], 200 * 20, "y is stored correctly");
478 eq(shape.commandsPosition, 9, "instructions didn't write more data than expected");
479 eq(shape.coordinatesPosition, 18, "instructions didn't write more data than expected");
480}
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267function drawRect(x, y, width, height) {
268 this.commandQueue.push(new Command(function (x, y, width, height) {
269 var rendererContext = this.renderContext;
270 this.canvasContext.beginPath();
271 this.canvasContext.rect(rendererContext._transformTx + x, rendererContext._transformTy + y, width, height);
272 this.canvasContext.closePath();
273 }, this, [x, y, width, height]));
274 this._fill();
275}

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