diff options
Diffstat (limited to 'rustlings-macros')
| -rw-r--r-- | rustlings-macros/info.toml | 37 |
1 files changed, 19 insertions, 18 deletions
diff --git a/rustlings-macros/info.toml b/rustlings-macros/info.toml index 485665e..be3b262 100644 --- a/rustlings-macros/info.toml +++ b/rustlings-macros/info.toml @@ -29,20 +29,21 @@ https://github.com/rust-lang/rustlings/blob/main/CONTRIBUTING.md # INTRO -# TODO: Update exercise [[exercises]] name = "intro1" dir = "00_intro" test = false -# TODO: Fix hint -hint = """Enter `n` to move on to the next exercise. You might need to press ENTER after typing `n`.""" +hint = """ +Enter `n` to move on to the next exercise. +You might need to press ENTER after typing `n`.""" [[exercises]] name = "intro2" dir = "00_intro" test = false hint = """ -The compiler is informing us that we've got the name of the print macro wrong, and has suggested an alternative.""" +The compiler is informing us that we've got the name of the print macro wrong. +It also suggests an alternative.""" # VARIABLES @@ -51,18 +52,18 @@ name = "variables1" dir = "01_variables" test = false hint = """ -The declaration in the first line in the main function is missing a keyword -that is needed in Rust to create a new variable binding.""" +The declaration in the `main` function is missing a keyword that is needed +in Rust to create a new variable binding.""" [[exercises]] name = "variables2" dir = "01_variables" test = false hint = """ -The compiler message is saying that Rust cannot infer the type that the +The compiler message is saying that Rust can't infer the type that the variable binding `x` has with what is given here. -What happens if you annotate the first line in the main function with a type +What happens if you annotate the first line in the `main` function with a type annotation? What if you give `x` a value? @@ -78,9 +79,9 @@ name = "variables3" dir = "01_variables" test = false hint = """ -Oops! In this exercise, we have a variable binding that we've created on in the -first line in the `main` function, and we're trying to use it in the next line, -but we haven't given it a value. +In this exercise, we have a variable binding that we've created in the `main` +function, and we're trying to use it in the next line, but we haven't given it +a value. We can't print out something that isn't there; try giving `x` a value! @@ -92,7 +93,7 @@ name = "variables4" dir = "01_variables" test = false hint = """ -In Rust, variable bindings are immutable by default. But here we're trying +In Rust, variable bindings are immutable by default. But here, we're trying to reassign a different value to `x`! There's a keyword we can use to make a variable binding mutable instead.""" @@ -120,12 +121,12 @@ dir = "01_variables" test = false hint = """ We know about variables and mutability, but there is another important type of -variable available: constants. +variables available: constants. -Constants are always immutable and they are declared with keyword `const` rather -than keyword `let`. +Constants are always immutable. They are declared with the keyword `const` instead +of `let`. -Constants types must also always be annotated. +The type of Constants must always be annotated. Read more about constants and the differences between variables and constants under 'Constants' in the book's section 'Variables and Mutability': @@ -139,7 +140,7 @@ name = "functions1" dir = "02_functions" test = false hint = """ -This main function is calling a function that it expects to exist, but the +This `main` function is calling a function that it expects to exist, but the function doesn't exist. It expects this function to have the name `call_me`. It expects this function to not take any arguments and not return a value. Sounds a lot like `main`, doesn't it?""" @@ -688,7 +689,7 @@ test = false hint = """ If other functions can return a `Result`, why shouldn't `main`? It's a fairly common convention to return something like `Result<(), ErrorType>` from your -main function. +`main` function. The unit (`()`) type is there because nothing is really needed in terms of positive results.""" |