了解 javascript 语句的使用

Question

这道题不是为了求题解，而是如题所示理解。我无法对问题进行分类。无需再费周折。我开始在网站上练习Javascript freecodecamp.org.My 主要关注的是freecodecamp.org:

中函数的设置

for ([initialization]; [condition]; [final-expression])

请记住，这三个都是声明。因此，当我深入挖掘时，网站 w3schools.com 表示：

JavaScript statements are composed of:Values, Operators, Expressions, Keywords, and Comments.

The for loop has the following syntax:
for (statement 1; statement 2; statement 3) {
  // code block to be executed
}

w3schools.com 将字符串显示为语句。我的问题是： - 这是否意味着对象也可以成为语句？（因为值被认为是语句，所以我指的是名称-值对）。 - 语句和参数如何相互关联？（因为两者都是 'value-holders'）

Answer 1

Does that mean Objects can also become statements?

答案是否。

我明白你的意思了：因为你可以在编程语言中使用对象来实现“statement/operator-like意义”，但这些属性只存在于语义中，并不会像实际语句一样成为语法的一部分或语言的运算符。

其实和syntax and semantics when it comes to the inner logic programming languages. I don't want to dig deeper in it because that would be a bit off-topic for Stack Overflow有很大区别，我也不是计算机专业的

Answer 2

Does that mean Objects can also become statements? (Since values are considered to be statements, I am referring to the Name-Value-pairs)

没有。来自 w3schools.com，他们是这样解释声明的：

This statement tells the browser to write "Hello Dolly." inside an HTML element with id="demo": document.getElementById("demo").innerHTML = "Hello Dolly.";

之所以for循环包含三个"statements"：

for (statement 1; statement 2; statement 3) {
  // code block to be executed
}

是因为那些语句告诉浏览器做什么：

Statement 1 is executed (one time) before the execution of the code block.

Statement 2 defines the condition for executing the code block.

Statement 3 is executed (every time) after the code block has been executed.

How are statements and parameters connected with each other?

他们不是。

参数在函数中使用，在函数中表现为局部变量；
语句告诉浏览器做什么，并被一一执行。

参考文献：

JS Statements

JS for loop

JS Function parameters

了解 javascript 语句的使用

understanding the use of javascript statements

javascript

statements