g43-collection.ts

export interface G43BasicCollection<T> {
    readonly length: number;

    add(item: T): void;

    contains(item: T): boolean;

    clear(): void;

    forEach(callback: (item: T, index: number) => boolean): void;
}

export interface G43Collection<T> extends G43BasicCollection<T> {
    remove(item: T): void;
}