rustHow do I capitalize a string in Rust?

To capitalize a string in Rust, you can use the to_uppercase() method. This method is available on all String types.

Example code

let my_string = "hello world";
let my_string_uppercase = my_string.to_uppercase();

Output example

HELLO WORLD

The code above takes a string, my_string, and calls the to_uppercase() method on it. This returns a new string, my_string_uppercase, which is the original string with all characters capitalized.

Parts of the code:

• let my_string = "hello world";: This declares a variable, my_string, and assigns it the value of the string "hello world".
• let my_string_uppercase = my_string.to_uppercase();: This calls the to_uppercase() method on the my_string variable, and assigns the result to the my_string_uppercase variable.

Helpful links

• Rust Documentation - Strings

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