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docs(groceries): correct grammar

This commit is contained in:
davhojt 2022-05-19 11:02:57 +03:00 committed by Dav Hojt
parent 1fadaf6cd3
commit 906fb14799
1 changed files with 11 additions and 12 deletions
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23
subjects/groceries/README.md
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@ -2,16 +2,10 @@
### Instructions
Create a **function** called `insert` that inserts a new element at the end of the `Vec`.
Create a **function** named `insert`, that inserts a new element at the end of the `Vec`.
And another **function** `at_index` that returns the value found at the index passed as an argument.
Create another **function** named `at_index` that returns the value found at the index passed as an argument.
### Notions
- [Common Collections](https://doc.rust-lang.org/stable/book/ch08-00-common-collections.html)
- [Vectors](https://doc.rust-lang.org/stable/book/ch08-01-vectors.html)
### Expected Functions
```rust
pub fn insert(vec: &mut Vec<String>, val: String) {
@ -31,12 +25,12 @@ use groceries::{insert, at_index};
fn main() {
let mut groceries = vec![
"yogurt".to_string(),
"panetone".to_string(),
"panettone".to_string(),
"bread".to_string(),
"cheese".to_string(),
];
insert(&mut groceries, String::from("nuts"));
println!("The groceries list now = {:?}", &groceries);
println!("The groceries list contains {:?}", &groceries);
println!(
"The second element of the grocery list is {:?}",
at_index(&groceries, 1)
@ -48,7 +42,12 @@ And its output:
```console
$ cargo run
The groceries list now = ["yogurt", "panetone", "bread", "cheese", "nuts"]
The second element of the grocery list is "panetone"
The groceries list contains ["yogurt", "panettone", "bread", "cheese", "nuts"]
The second element of the grocery list is "panettone"
$
```
### Notions
- [Common Collections](https://doc.rust-lang.org/stable/book/ch08-00-common-collections.html)
- [Vectors](https://doc.rust-lang.org/stable/book/ch08-01-vectors.html)