CODEWITHSUNDEEP
javascriptstacksizemaxcall
A.Bau
A.Bau

Reputation: 82

Maximum call stack size exceeded

I try to make a little game but if I start it it says : Uncaught RangeError: Maximum call stack size exceeded" What's wrong with my code? ;-)

function move(top,left){
    y_ball = $('#ball').offset().top - $('#spielfeld').offset().top;
    x_ball = $('#ball').offset().left - $('#spielfeld').offset().left;
    x_balken = $('#balken').offset().left - $('#spielfeld').offset().left;

    ball = document.getElementById('ball');
    balken = document.getElementById('balken');              

    if(y_ball >= 0 && y_ball < 465 && x_ball >= 0 && x_ball <= 500){
        ball.style.top = y_ball + top + "px";
        ball.style.left = x_ball + left + "px";
        setTimeout(move, 20 , top, left);
        return false;
    }

    if(y_ball == 0 || x_ball == 0 || x_ball == 500 || y_ball > 465){
        top = - top;
        left= - left;
        move(top,left);
        return false;
    }

    if(y_ball >= 465){
        if(-19 < x_ball - x_balken < 59){
            top = - top;
            left= - left;
            move(top,left);
        }
    }
}

Upvotes: 1

Views: 486

Answers (1)

Glenn Randers-Pehrson
Glenn Randers-Pehrson

Reputation: 12455

Suppose x_ball, y_ball, top, and left are all zero. You'll generate an infinite series of recursive calls to "move(0,0)", which will exhaust your stack.

Upvotes: 2

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