调用不带括号的函数 - Invoking a function without parentheses

问题：

I was told today that it's possible to invoke a function without parentheses.今天有人告诉我，可以调用不带括号的函数。 The only ways I could think of was using functions like apply or call .我能想到的唯一方法是使用诸如apply或call类的函数。

f.apply(this);
f.call(this);

But these require parentheses on apply and call leaving us at square one.但是这些需要括号中的apply和call让我们在第一个地方离开。 I also considered the idea of passing the function to some sort of event handler such as setTimeout :我还考虑了将函数传递给某种事件处理程序（例如setTimeout的想法：

setTimeout(f, 500);

But then the question becomes "how do you invoke setTimeout without parentheses?"但是接下来的问题就变成了“如何在没有括号的情况下调用setTimeout ？”

So what's the solution to this riddle?那么这个谜语的解法是什么？ How can you invoke a function in Javascript without using parentheses?如何在不使用括号的情况下调用 Javascript 中的函数？

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解决方案：

参考一： https://stackoom.com/question/2Qq7W
参考二： Invoking a function without parentheses