rustHow to format a string with integer in Rust

Formatting a string with an integer in Rust is done using the format! macro. This macro takes a format string and a list of arguments and returns a String object. The format string contains placeholders for the arguments, which are replaced with the values of the arguments.

Code example:

let x = 10;
let formatted_string = format!("The value of x is {}", x);

Output

The value of x is 10

Explanation:

1. The let keyword is used to declare a variable x and assign it the value 10.
2. The format! macro is used to create a String object from a format string and a list of arguments. In this case, the format string is "The value of x is {}" and the argument is x.
3. The format! macro replaces the placeholder {} in the format string with the value of the argument x, which is 10.
4. The format! macro returns a String object with the value The value of x is 10.

Helpful links:

1. Rust Documentation - format!
2. Rust by Example - format!

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