Using Vectors for Dynamic Lists

Snippet

Vectors allow you to store a variable number of values next to each other in memory. Unlike arrays, they can grow or shrink.

snippet.rs
rust
let mut v: Vec<i32> = Vec::new();
v.push(5);
v.push(6);
 
let second = v[1];
println!("The second element is {}", second);

Breakdown

Vec<i32> = Vec::new()

Creates a new, empty vector that will hold 32-bit integers.

v.push(5)

Adds a new element to the end of the vector.

v[1]

Accesses an element at a specific index using indexing syntax.

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