# Vector.

# Create.

## Using macro.

```rust
let array:  [i32; 4] = [10, 20, 30, 40];
let vector: Vec<i32> = vec!(10, 20, 30, 40);
```

# Iterate.

## For-each.

```rust
for (item in vector.iter()) {}     // Immutable iterate.
for (item in vector.iter_mut()) {} // Mutable iterate.
```

## Map.

```rust
vector.iter().map(|element| {}).collect()
```

# Copy.

## Clone.

You can clone a Vec in cases when you need to modify a copy.

```rust
foo(vector.clone())
```