WHEN A FUNCTION - 翻译成中文

• 当一个函数
• 当一个功能

在 英语 中使用 When a function 的示例及其翻译为 中文

When a function is used as a constructor(with the new keyword), its this is bound to the new object being constructed.
当函数是被当作constructor来调用（使用new关键字）时，this被绑定到新分配的对象上。

When a function is called, a block is reserved on the top of the stack for local variables and some bookkeeping data.
调用函数时，在堆栈顶部为局部变量和某些记帐数据保留一个块。

When a function returns a function, that is when the concept of closures becomes more relevant.
当函数的返回值是一个函数时，闭包的概念就变得更加相关了。

Unit testing was a staple of the FORTRAN days, when a function was a function and was sometimes worthy of functional testing.
单元测试是FORTRAN时代的主要内容，那时候函数就是一个函数，有时候值得进行功能测试。

When a function is called, all variable names declared within the function are added to the scope.
调用函数时，所有在函数内声明的变量名称都将被加入到作用域中。

Next let's add another keyword to let the engine know exactly when a function being invoked is asynchronous and is going to return a promise.
接下来让我们添加另一个关键字，让引擎确切知道被调用的函数何时是异步的并且将返回一个promise。

When a function is called using call() or apply(), or bind(), this refers to the first argument passed to these methods.
当函数通过call()、apply()或者bind()调用时,this指向的是传递给这些方法的第一个参数。

This makes sense, as Mammal has no definition of walk, and these“pure_virtual” entries are inserted by GCC when a function is(unsurprisingly) purely virtual.
这是有道理的，因为Mammal没有定义walk，而这些“pure_virtual”是由GCC插入，当这些函数是虚函数时。

When a functioning pituitary tumor makes extra hormones, the signs and symptoms will depend on the type of hormone being made.
当功能性垂体肿瘤产生额外的激素时，症状和体征将取决于所产生的激素类型。

Mostly this problem appears when a function uses free variables.
最主要的问题是出现在，当一个函数使用自由变量（freevariables）时。

This is often used when a function returns multiple values.
这通常在函数返回多个值时使用：.

Mostly this problem appears when a function uses free variables.
绝大部分情况下，问题会出现在当函数有自由变量的时候。

You can use defer for any purpose, such as logging when a function exits.
你可以使用defer完成任何目的，例如当一个函数退出时打印日志记录。

First, when a function f is created, it is not created in an empty space.
首先，当创建函数f时，它不会创建为空空间。

When a function calls another function, a new local symbol table is created for that call.
当在一个函数中调用另外一个函数时，将会为这次调用创建一个新的局部符号表。

The key to remember is that when a function gets declared, it contains a function definition and a closure.
需要记住的关键点是，但函数声明时，它包含函数定义和一个闭包。

When a function completes, all of its local variables by default are destroyed.
当一个函数结束执行后，其所有局部变量都会被销毁。

When a function calls another function, a new local symbol table is created for that call.
一个函数被另一个函数调用时，一个新的局部符号表在调用过程中被创建。

When a function is created, it inherits the environment from the function that created it.
当新创建一个函数时，它会继承创建它的函数的环境。

It appears when a function is returned“up”(to the outside) from another function and uses already mentioned above free variables.
它出现于一个函数从另一个函数中被返回到上一层（外部），而它包含了上面提到的自由变量的时候。