Function isNonEmptyTuple

isNonEmptyTuple<E>(array: readonly E[]): array is readonly [E, E]
Type guard that checks if an array is non-empty, narrowing it to the structural non-empty tuple.

This is the structural counterpart of isNonEmpty: it narrows to MinLengthTuple<1, E> rather than to the branded MinLengthArray<1, E>. Prefer isNonEmpty unless you specifically need the structural type.
Type Parameters
- E
  The element type.
Parameters
- array: readonly E[]
  The array to check.
Returns array is readonly [E, E]
true if array.length >= 1. When true, TypeScript narrows array to MinLengthTuple<1, E>.
Example
```
const values: readonly number[] = [1, 2] as const;

assert.isTrue(Arr.isNonEmptyTuple(values));

assert.isFalse(Arr.isNonEmptyTuple([] as const));
```
- Defined in packages/ts-data-forge/src/array/impl/array-utils-length-bounded-tuple-guard.mts:58