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docs(groceries): correct grammar
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@ -2,16 +2,10 @@
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### Instructions
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### Instructions
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Create a **function** called `insert` that inserts a new element at the end of the `Vec`.
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Create a **function** named `insert`, that inserts a new element at the end of the `Vec`.
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And another **function** `at_index` that returns the value found at the index passed as an argument.
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Create another **function** named `at_index` that returns the value found at the index passed as an argument.
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### Notions
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- [Common Collections](https://doc.rust-lang.org/stable/book/ch08-00-common-collections.html)
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- [Vectors](https://doc.rust-lang.org/stable/book/ch08-01-vectors.html)
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### Expected Functions
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```rust
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```rust
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pub fn insert(vec: &mut Vec<String>, val: String) {
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pub fn insert(vec: &mut Vec<String>, val: String) {
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@ -31,12 +25,12 @@ use groceries::{insert, at_index};
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fn main() {
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fn main() {
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let mut groceries = vec![
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let mut groceries = vec![
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"yogurt".to_string(),
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"yogurt".to_string(),
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"panetone".to_string(),
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"panettone".to_string(),
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"bread".to_string(),
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"bread".to_string(),
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"cheese".to_string(),
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"cheese".to_string(),
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];
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];
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insert(&mut groceries, String::from("nuts"));
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insert(&mut groceries, String::from("nuts"));
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println!("The groceries list now = {:?}", &groceries);
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println!("The groceries list contains {:?}", &groceries);
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println!(
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println!(
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"The second element of the grocery list is {:?}",
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"The second element of the grocery list is {:?}",
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at_index(&groceries, 1)
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at_index(&groceries, 1)
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@ -48,7 +42,12 @@ And its output:
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```console
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```console
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$ cargo run
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$ cargo run
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The groceries list now = ["yogurt", "panetone", "bread", "cheese", "nuts"]
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The groceries list contains ["yogurt", "panettone", "bread", "cheese", "nuts"]
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The second element of the grocery list is "panetone"
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The second element of the grocery list is "panettone"
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$
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$
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```
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```
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### Notions
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- [Common Collections](https://doc.rust-lang.org/stable/book/ch08-00-common-collections.html)
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- [Vectors](https://doc.rust-lang.org/stable/book/ch08-01-vectors.html)
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