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Auto merge of #207 - nkanderson:fix_iterators2, r=komaeda

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Fix iterators2

A couple of small changes to the `iterators2` exercise. @Jesse-Cameron, it looks like you contributed this exercise, so I wanted to check and see if these changes are in line with your intentions. Happy to adjust if they're not :)
This commit is contained in:
bors 2019-08-11 15:44:40 +00:00
parent e696a07190 e3931718fb
commit f83af3c25d
1 changed files with 2 additions and 2 deletions
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4
exercises/standard_library_types/iterators2.rs
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@ -1,7 +1,7 @@
// iterators2.rs // iterators2.rs
// In this module, you'll learn some of unique advantages that iterators can offer // In this module, you'll learn some of unique advantages that iterators can offer
// Step 1. Complete the `capitalize_first` function to pass the first two cases // Step 1. Complete the `capitalize_first` function to pass the first two cases
// Step 2. Apply the `capitalize_first` function to a vector of strings, ensuring that it // Step 2. Apply the `capitalize_first` function to a vector of strings, ensuring that it returns a vector of strings as well
// Step 3. Apply the `capitalize_first` function again to a list, but try and ensure it returns a single string // Step 3. Apply the `capitalize_first` function again to a list, but try and ensure it returns a single string
// As always, there are hints below! // As always, there are hints below!
@ -9,7 +9,7 @@ pub fn capitalize_first(input: &str) -> String {
let mut c = input.chars(); let mut c = input.chars();
match c.next() { match c.next() {
None => String::new(), None => String::new(),
Some(first) => first.collect()::<String>() + c.as_str(), Some(first) => first.collect::<String>() + c.as_str(),
} }
} }