rustHow do I uppercase a Rust string?

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

Example

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

Output example

HELLO WORLD

The to_uppercase() method takes no arguments and returns a new String with all characters in uppercase.

Code explanation

• let my_string = "hello world";: This line declares a String variable called my_string and assigns it the value "hello world".
• let uppercase_string = my_string.to_uppercase();: This line calls the to_uppercase() method on the my_string variable and assigns the result to a new String variable called uppercase_string.

Helpful links

• Rust String Documentation

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