tristan/rustlings
1
0
Fork 0
mirror of https://github.com/rust-lang/rustlings.git synced 2024-12-26 23:36:30 +00:00
Code Issues Projects Releases Packages Wiki Activity Actions

fix(option2): Rename uninformative variables (#675)

Browse source 
Renaming uninformative names like `optional_value`, `value`, `optional_values_vec` and `value` helps users distinguish between the two parts of the task.
This commit is contained in:
k12ish 2021-04-20 10:18:05 +01:00 committed by GitHub
parent a37a8818c8
commit b4de659438
No known key found for this signature in database
GPG key ID: 4AEE18F83AFDEB23
1 changed files with 8 additions and 8 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

16
exercises/option/option2.rs
View file

@ -4,22 +4,22 @@
// I AM NOT DONE
fn main() {
let optional_value = Some(String::from("rustlings"));
let optional_word = Some(String::from("rustlings"));
// TODO: Make this an if let statement whose value is "Some" type
value = optional_value {
println!("the value of optional value is: {}", value);
word = optional_word {
println!("The word is: {}", word);
} else {
println!("The optional value doesn't contain anything!");
println!("The optional word doesn't contain anything");
}
let mut optional_values_vec: Vec<Option<i8>> = Vec::new();
let mut optional_integers_vec: Vec<Option<i8>> = Vec::new();
for x in 1..10 {
optional_values_vec.push(Some(x));
optional_integers_vec.push(Some(x));
}
// TODO: make this a while let statement - remember that vector.pop also adds another layer of Option<T>
// You can stack `Option<T>`'s into while let and if let
value = optional_values_vec.pop() {
println!("current value: {}", value);
integer = optional_integers_vec.pop() {
println!("current value: {}", integer);
}
}