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Clarify function definitions vs. expressions 

Fixes #2980.
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Chris Krycho 2024-03-04 12:22:37 -07:00
parent 19c40bfd2d
commit b411d7072e
1 changed files with 2 additions and 1 deletions
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src/ch03-03-how-functions-work.md
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@ -125,7 +125,8 @@ assigning a value to it with the `let` keyword is a statement. In Listing 3-1,
<span class="caption">Listing 3-1: A `main` function declaration containing one statement</span>
Function definitions are also statements; the entire preceding example is a
statement in itself.
statement in itself. As we will see below, *calling* a function is an
expression.
Statements do not return values. Therefore, you can’t assign a `let` statement
to another variable, as the following code tries to do; you’ll get an error: