英文:
Why does VS Code colour JavaScript's `Math` and `Number` differently?
问题
Take Math.random and Number.MAX_VALUE function.
为什么Number是绿色，而其他是蓝色（适用于我的颜色主题）。这也适用于Number上的静态方法。
英文:
Take Math.random and Number.MAX_VALUE function.
Why is Number green and the other Blue (for my colour theme). This also applies to static methods on Number.
答案1
得分: 3
-
对于
Math："语义令牌类型：变量" -
对于
Number："语义令牌类型：类"
这我认为是有道理的。在 lib.es5.d.ts 中：
interface NumberConstructor {
new(value?: any): Number;
...
}
...
declare var Number: NumberConstructor;
...
interface Math {
... // 没有构造函数 (`new` 函数)
}
declare var Math: Math;
NumberConstructor 类型声明中的 new 函数为 Number 构造函数提供了类型信息，这表明对 TypeScript 来说 Number 是一个类。但对于 Math 类型则不是这样。
英文:
If you inspect the token scopes using Developer: Inspect Editor Tokens and Scopes, you'll see:
-
For
Math: "semantic token type: variable" -
For
Number: "semantic token type: class"
This makes sense I think. In lib.es5.d.ts:
interface NumberConstructor {
new(value?: any): Number;
...
}
...
declare var Number: NumberConstructor;
...
interface Math {
... // no constructor (`new` function)
}
declare var Math: Math;
The new function in the NumberConstructor type declaration is providing typings for the Number constructor, which indicates to TypeScript that Number is a class. But not so for the Math type.
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