Result::and_then

pub fn and_then<U>(T -> Result<U, E> f) -> Result<U, E>

f(value) (itself a Result), or the same error.

Called on a Result value as value.and_then(…).

Parameters#

Returns#

Result<U, E>

See also#

• Result
• Result::is_ok: True when this is Ok.
• Result::is_err: True when this is Err.
• Result::ok: The Ok value as an Option.
• Result::err: The Err value as an Option.
• Result::unwrap_or: The Ok value, or fallback on Err.
• Result::unwrap_or_else: The Ok value, or f applied to the error.
• Result::map: Ok(f(value)), or the same error.