thre

Been staring at this for hours, seen few tutorials and can't find the error. Can someone give me some direction. I believe this is suppose to let me draw but its doesn't. 

const canvas = document.querySelector("#canvas");

const ctx = canvas.getContext("2d");

canvas.height = window.innerHeight;

canvas.width = window.innerWidth;

let painting = false;

function start(){

    painting = true;

}

function end(){

    painting = false;

}

function draw(e){

    if (!painting) return;

    ctx.lineWidth = 10;

    ctx.lineCap = "round";

    ctx.lineTo(e.clientX, e.clinetY)

    ctx.stroke();

}

canvas.addEventListener("mousedown", start);

canvas.addEventListener("mouseup", end);

canvas.addEventListener("mousemove", draw);