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I’m trying to understand what identifiers represent and what they don’t represent.
As I understand it, an identifier is a name for a method, a constant, a variable, a class, a package/module. It covers a lot. But what can you not use it for?
as its name implifies, an identifier is used to identify something. so for everything that can be identified uniquely, you can use an identifier. But for example a literal (e.g. string literal) is not unique so you can’t use an identifier for it. However you can create a variable and assign a string literal to it.