Why isn't my ball moving?

Question

window.onload = function(){
let btn = document.getElementById("jump");
let count = 0;

document.ontouchstart = function(){
count += 1;
y -= 25;

}
function draw() {
context.clearRect(0, 0, 600, 400);

context.beginPath();
context.arc(x, y, 50, 0, 2 * Math.PI);
context.fillStyle="red";
context.fill();

context.font = '25px Arial';
context.fillStyle = 'white';
context.fillText("Count: " + count, 20, 30);

window.requestAnimationFrame(draw);
}

var canvas = document.getElementById("canvas");
var context = canvas.getContext("2d");
var x = 300;
var y = 350;

context.arc(x, y, 50, 0, 2 * Math.PI);
context.fillStyle="red";
context.fill();
}

Answer 1

you didn't call the function draw() ;
change text color to something other than white to be visible.
https://code.sololearn.com/WYa3T1tOmLnk/?ref=app

Answer 2

Thank you Bahha!