Function combinations

combinations<T>(set): T[][]
Get all possible combinations of elements in a set.

Examples:
```
combinations([1, 2, 3])  // [[1], [2], [3], [1, 2], [1, 3], [2, 3], [1, 2, 3]]
combinations([1])  // [[1]]
```
Type Parameters
- T
Parameters
- set: T[]
  Array of objects of any type. They are treated as unique.
Returns T[][]
Array of arrays representing all possible non-empty combinations of elements in a set.
- Defined in src/combinations.ts:123