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932 B
932 B
capitalizing
Instructions
Complete the capitalize_first
function which turns the first letter of a string to uppercase.
Complete the title_case
function which turns the first letter of each word in a string to uppercase.
Complete the change_case
function which turns the uppercase letters of a string into lowercase and the lowercase letters into uppercase.
Expected Functions
pub fn capitalize_first(input: &str) -> String {
}
pub fn title_case(input: &str) -> String {
}
pub fn change_case(input: &str) -> String {
}
Usage
Here is a program to test your functions.
use capitalizing::*capitalizing*;
fn main() {
println!("{}", capitalize_first("joe is missing"));
println!("{}", title_case("jill is leaving A"));
println!("{}",change_case("heLLo THere"));
}
And its output
$ cargo run
Joe is missing
Jill Is Leaving A
HEllO thERE
$