Method negate

packages/db-ivm/src/multiset.ts:52–56

* Negate all multiplicities in the collection.

()

   * Negate all multiplicities in the collection.
   */
  negate(): MultiSet<T> {
    return new MultiSet(
      this.#inner.map(([data, multiplicity]) => [data, -multiplicity]),
    )
  }

  /**
   * Concatenate two collections together.