調用不帶括號的函數 - Invoking a function without parentheses

問題：

I was told today that it's possible to invoke a function without parentheses.今天有人告訴我，可以調用不帶括號的函數。 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諸如apply或call類的函數。

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

But these require parentheses on apply and call leaving us at square one.但是這些需要括號中的apply和call讓我們在第一個地方離開。 I also considered the idea of passing the function to some sort of event handler such as setTimeout :我還考慮了將函數傳遞給某種事件處理程序（例如setTimeout的想法：

setTimeout(f, 500);

But then the question becomes "how do you invoke setTimeout without parentheses?"但是接下來的問題就變成了“如何在沒有括號的情況下調用setTimeout ？”

So what's the solution to this riddle?那麼這個謎語的解法是什麼？ How can you invoke a function in Javascript without using parentheses?如何在不使用括號的情況下調用 Javascript 中的函數？

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解決方案：

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