var canvas = document.getElementById("canvas"); var ctx = canvas.getContext("2d"); canvas.width = screen.width; canvas.height = screen.height; function randInt(min,max) { return Math.floor(Math.random() * (max - min + 1)) + min; } function generateString() { var final = ""; var length = randInt(50,100); for(var i = 0; i < length; i++) { final += randInt(0,1); } return final; } console.log(generateString()); ctx.fillStyle = "#000"; ctx.fillRect(0,0, canvas.width, canvas.height); function getWebsite(geturl) { xmlhttp=new XMLHttpRequest(); xmlhttp.open("GET", geturl, false); xmlhttp.send(); var data = xmlhttp.responseText; }