Javascript 如何在另一个函数内部调用一个函数？
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How do I call a function inside of another function?
提问by Web_Designer
I just want to know how to call a javascript function inside another function. If I have the code below, how do I call the second function inside the first?
我只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，我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.")
}
回答by Christian
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();A little bit more context: this works in JavaScript because of a language feature called "variable hoisting" - basically, think of it like variable/function declarations are put at the top of the scope(more info).
多一点上下文：这在 JavaScript 中有效，因为有一种称为“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）。
回答by Luthoz
function function_one() {
function_two();
}
function function_two() {
//enter code here
}
回答by Rajendra Tripathy
function function_one()
{
alert("The function called 'function_one' has been called.")
//Here u would like to call function_two.
function_two();
}
function function_two()
{
alert("The function called 'function_two' has been called.")
}