“configuração de tela” Respostas de código

configuração de tela

const canvas = document.querySelector('canvas'), c = canvas.getContext('2d');

(window.onresize=e=>{canvas.width=innerWidth,canvas.height=innerHeight})();

(function animate () {
	c.clearRect(0, 0, canvas.width, canvas.height);
	requestAnimationFrame(animate);	
})();