rustHow to format error in Rust

Rust provides a number of ways to format errors. The most common way is to use the format! macro. This macro allows you to create a formatted string from a template and a list of arguments.

Code example:

let name = "John";
let age = 30;
let error = format!("{} is {} years old", name, age);
println!("{}", error);

Output

John is 30 years old

Explanation:

1. The format! macro takes a template string and a list of arguments.
2. The template string is a string literal that contains placeholders for the arguments.
3. The placeholders are denoted by curly braces {} and the arguments are passed in the same order as the placeholders.
4. The println! macro is used to print the formatted string to the console.

Helpful links:

1. Rust Documentation - Formatting
2. Rust by Example - Formatting

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