Function loop

src/utils.ts:63–73

()

    const handle: Handle = { value: 0 };

    function loop(): number | void {
        const current = new Date().getTime();

        const delta = current - start;

        if (delta >= delay) {
            fn.call(null);
        } else {
            handle.value = requestAnimFrame(loop);
        }
    }

    handle.value = requestAnimFrame(loop);
    return handle;