rustHow do you find a substring in a Rust string?

You can find a substring in a Rust string using the contains() method. This method takes a &str as an argument and returns a bool indicating whether the string contains the substring.

Example code

let my_string = "Hello World!";
let substring = "World";

let result = my_string.contains(substring);

Output example

true

Code explanation

• let my_string = "Hello World!";: This line declares a variable my_string and assigns it the value of the string "Hello World!".
• let substring = "World";: This line declares a variable substring and assigns it the value of the string "World".
• let result = my_string.contains(substring);: This line calls the contains() method on the my_string variable, passing in the substring variable as an argument. The result of the method is assigned to the result variable.

Helpful links

• Rust String Documentation

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