Arrays
- Arrays intro
- Array elements - indexing
- Array iterate over (each, each_with_index)
- Array push, append, <<
- Empty array
- Count digits
- Operations on arrays
- Add arrays
- Repeat arrays
- Select (filter, grep)
- Reject (negative filter, grep)
- Transform with map
- Sample from array
- Shuffle array
- join
- Remove nil elements
- Create Array with nil
- Does array include a value
- Delete element from array by value
- Delete element from array by location
- Insert element into array at location
- Arrays shift - remove first element
- Arrays uniq elements
- First element of the array
- Permutations