| 294 | predicate: Predicate<A> |
| 295 | ): readonly [Set<A>, Set<A>] |
| 296 | export function partition_<A>( |
| 297 | set: Set<A>, |
| 298 | predicate: Predicate<A> |
| 299 | ): readonly [Set<A>, Set<A>] { |
| 300 | const values = set.values() |
| 301 | let e: Next<A> |
| 302 | const right = new Set<A>() |
| 303 | const left = new Set<A>() |
| 304 | while (!(e = values.next() as any).done) { |
| 305 | const value = e.value |
| 306 | if (predicate(value)) { |
| 307 | right.add(value) |
| 308 | } else { |
| 309 | left.add(value) |
| 310 | } |
| 311 | } |
| 312 | return tuple(left, right) |
| 313 | } |
| 314 | |
| 315 | /** |
| 316 | * Test if a value is a member of a set |