Can't parse String from stdin to floating-point - Rust

Question

When parsing a String type value to a floating-point type value in Rust, everything works fine with
\"let pi: f64 = 3.14\".parse().unwrap();.

However,

Answer 1

As suggested by SCappella the new line needs to be removed. The following will work:

let user_input: f64 = s.trim().parse().unwrap();