Method symmetricDifference

src/lualib/Set.ts:205–215

* @returns a new Set containing all the elements which are in either this Set or in the argument, but not in both.

(other: ReadonlySet<T>)

     * @returns a new Set containing all the elements which are in either this Set or in the argument, but not in both.
     */
    public symmetricDifference(other: ReadonlySet<T>): Set<T> {
        const result = new Set<T>(this);
        for (const item of other) {
            if (this.has(item)) {
                result.delete(item);
            } else {
                result.add(item);
            }
        }
        return result;
    }

    /**
     * @returns a boolean indicating whether all the elements in this Set are also in the argument.