Unexpected token ) in javascriptscript [closed]

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I'm trying to understand why the error in the title occurs in my script. I tried to match every bracket in sublime and it seems fine.

Here is the code

<script>

window.onload = function(){
var socket = io.connect("http://localhost:1337");
socket.on("drawn_complete",function(data){
    imgData = ctx.getImageData(data.width, data.height);
    for (var i = 0; i < data.raw.length) {
        imgData.data[i] = data.raw[i];
    }
ctx.putImageData(imgData, 0, 0);
});


var c = document.getElementById("myCanvas");
var moving = false;
console.log(c);
 var ctx = c.getContext("2d");
c.onmousedown = function(evt){
moving = true
};
c.onmousemove = function(evt){
    if(moving == true)
    {
        console.log("holding and moving");

        var x = evt.clientX - rect.left;
        var y = evt.clientY - rect.top;
        console.log("X: " + x + " Y: " + y);
        ctx.fillRect(x,y,1,1);
        canvasData = ctx.getImageData(0,0,200,100)
        myData = {
        height : canvasData.height,
        width : canvasData.width,
        raw : canvasData.data
};
socket.emit("drawing",{"image": myData});

    }
};
c.onmouseup = function(evt){
    moving = false;
};
};

</script>

Am I missing a ")" or a "}" ? Might this error be thrown in my nodejs? If so shouldn't my console which runs nodejs stop? The console doesn't log any error nor does it stop.

Answer 1

for (var i = 0; i < data.raw.length) {

You're missing the increment part (i++) for this for loop.

Answer 2

on line no 5:

for (var i = 0; i < data.raw.length; i++){
imgData.data[i] = data.raw[i];
}

you forgot to increment i++