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45 lines
934 B
45 lines
934 B
![]()
4 years ago
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## capitalizing
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### Instructions
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Complete the `capitalize_first` function that turns the first letter of a string uppercase.
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Complete the `title_case` function that turns the first letter of each word in a string uppercase.
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Complete the `change_case` function that turns the uppercase letters of a string into lowercase and the lowercase letters into uppercase.
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### Expected Functions
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```rust
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pub fn capitalize_first(input: &str) -> String {
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}
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pub fn title_case(input: &str) -> String {
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}
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pub fn change_case(input: &str) -> String {
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}
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```
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### Usage
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Here is a program to test your function.
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```rust
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fn main() {
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println!("{}", capitalize_first("joe is missing"));
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println!("{}", title_case("jill is leaving A"));
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println!("{}",change_case("heLLo THere"));
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}
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```
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And its output
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```console
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student@ubuntu:~/[[ROOT]]/test$ cargo run
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Joe is missing
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Jill Is Leaving A
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HEllO thERE
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student@ubuntu:~/[[ROOT]]/test$
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```
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