rustHow to unwrap error in Rust

Error unwrapping in Rust is a process of extracting the underlying error from a Result or Option type. This is done using the unwrap() method, which returns the value inside the Result or Option type if it is Ok, or panics if it is Err.

Code example:

let result: Result<i32, &str> = Ok(5);
let value = result.unwrap();
println!("The value is: {}", value);

Output

The value is: 5

Explanation:

1. The let result line declares a variable result of type Result<i32, &str> and assigns it the value Ok(5). This means that the Result type contains an Ok variant with the value 5.
2. The let value line declares a variable value and assigns it the result of calling the unwrap() method on result. This will extract the value 5 from the Ok variant and assign it to value.
3. The println! line prints the value of value to the console.

Helpful links:

1. Rust Documentation - Error Handling
2. Rust Documentation - Result

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