如何在另一个函数内部调用一个函数？

我只是想知道如何在另一个函数中调用 JavaScript 函数。 如果我有下面的代码，如何在第一个函数中调用第二个函数？

function function_one()
{
alert("The function called 'function_one' has been called.")
//Here I would like to call function_two.
}

function function_two()
{
alert("The function called 'function_two' has been called.")
}

function function_one() {
    function_two(); // considering the next alert, I figured you wanted to call function_two first
    alert("The function called 'function_one' has been called.");
}

function function_two() {
    alert("The function called 'function_two' has been called.");
}

function_one();

更多上下文：这在 JavaScript 中起作用是因为一种称为“变量提升”的语言功能 - 基本上，可以将其视为变量/函数声明放在作用域的顶部 (更多信息 https://scotch.io/tutorials/understanding-hoisting-in-javascript).