TypeScript/src/lib/es2015.collection.d.ts

interface Map<K, V> {
    clear(): void;
    delete(key: K): boolean;
    forEach(callbackfn: (value: V, key: K, map: Map<K, V>) => void, thisArg?: any): void;
    get(key: K): V | undefined;
    has(key: K): boolean;
    set(key: K, value: V): this;
    readonly size: number;
}

interface MapConstructor {
    new <K = any, V = any>(entries?: ReadonlyArray<[K, V]> | null): Map<K, V>;
    readonly prototype: Map<any, any>;
}
declare var Map: MapConstructor;

interface ReadonlyMap<K, V> {
    forEach(callbackfn: (value: V, key: K, map: ReadonlyMap<K, V>) => void, thisArg?: any): void;
    get(key: K): V | undefined;
    has(key: K): boolean;
    readonly size: number;
}

interface WeakMap<K extends object, V> {
    delete(key: K): boolean;
    get(key: K): V | undefined;
    has(key: K): boolean;
    set(key: K, value: V): this;
}

interface WeakMapConstructor {
    new <K extends object = object, V = any>(entries?: ReadonlyArray<[K, V]> | null): WeakMap<K, V>;
    readonly prototype: WeakMap<object, any>;
}
declare var WeakMap: WeakMapConstructor;

interface Set<T> {
    add(value: T): this;
    clear(): void;
    delete(value: T): boolean;
    forEach(callbackfn: (value: T, value2: T, set: Set<T>) => void, thisArg?: any): void;
    has(value: T): boolean;
    readonly size: number;
}

interface SetConstructor {
    new <T = any>(values?: ReadonlyArray<T> | null): Set<T>;
    readonly prototype: Set<any>;
}
declare var Set: SetConstructor;

interface ReadonlySet<T> {
    forEach(callbackfn: (value: T, value2: T, set: ReadonlySet<T>) => void, thisArg?: any): void;
    has(value: T): boolean;
    readonly size: number;
}

interface WeakSet<T extends object> {
    add(value: T): this;
    delete(value: T): boolean;
    has(value: T): boolean;
}

interface WeakSetConstructor {
    new <T extends object = object>(values?: ReadonlyArray<T> | null): WeakSet<T>;
    readonly prototype: WeakSet<object>;
}
declare var WeakSet: WeakSetConstructor;