无休止的控制台日志，javascript不会离开函数requestAnimationFrame

我在控制台中得到无休止的“渲染”。。。为什么会发生这种情况？我想不出来（我一整天都在做这件事。你们能看看问题出在哪里吗

控制台：

turnEvent
render
10 times render
Infunction: 150.458ms
6534 and counting times render

var turnEvent = function turnEvent(AnX, AnY) {
    var first = true;
    console.time('Infunction');
    var lengd = rects.length, i;
    one30 = 10,
    one40 = 10,  
    one301 = false, 
    one401 = false;
    for (i = 0; i < lengd; i += 1) {
        if (collides([rects[i]], AnX, AnY)) {
            var rightBox = rects[i];
            var rectangle = rects2[i];
        }
    }
    console.log("turnEvent");
    rounded_rect(rectangle.x, rectangle.y, 90, 110, 10, 'black', 'black');
    function render() {
        console.log("render"); <----------- ENDLESS CONSOLE LOGS

        -----some canvas drawings here------
        .......
       ----if and else conditions----
        if (one301 && one401) {
            rounded_rect(rectangle.x, rectangle.y, 90, 110, 10, null, 'black');
            console.timeEnd('Infunction');
        }
    }
    (function animloop(){
        requestAnimationFrame(animloop);
        render();
    })();
}

代码：

turnEvent
render
10 times render
Infunction: 150.458ms
6534 and counting times render

var turnEvent = function turnEvent(AnX, AnY) {
    var first = true;
    console.time('Infunction');
    var lengd = rects.length, i;
    one30 = 10,
    one40 = 10,  
    one301 = false, 
    one401 = false;
    for (i = 0; i < lengd; i += 1) {
        if (collides([rects[i]], AnX, AnY)) {
            var rightBox = rects[i];
            var rectangle = rects2[i];
        }
    }
    console.log("turnEvent");
    rounded_rect(rectangle.x, rectangle.y, 90, 110, 10, 'black', 'black');
    function render() {
        console.log("render"); <----------- ENDLESS CONSOLE LOGS

        -----some canvas drawings here------
        .......
       ----if and else conditions----
        if (one301 && one401) {
            rounded_rect(rectangle.x, rectangle.y, 90, 110, 10, null, 'black');
            console.timeEnd('Infunction');
        }
    }
    (function animloop(){
        requestAnimationFrame(animloop);
        render();
    })();
}

var-turnEvent=函数turnEvent（AnX，任意）{
var first=真；
控制台时间（'Infunction'）；
var lengd=矩形长度，i；
一个30=10，
一个40=10，
one301=false，
one401=假；
对于（i=0；ilog（“render”）；因为requestAnimationFrame将调用animloop，后者将执行另一个执行animloop等的requestAnimationFrame调用，这是一个递归操作

您需要在animloop中设置一个条件，以不调用requestAnimationFrame

(function animloop(){
    if(someConditionMet){
       //return without executing another requestAnimationFrame
       return;
    }
    requestAnimationFrame(animloop);
    render();
})();