458 lines
21 KiB
TypeScript
458 lines
21 KiB
TypeScript
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/**
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* @internal
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*/
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interface CollectionConstructor {
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new (): Collection<unknown, unknown>;
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new <K, V>(entries?: readonly (readonly [K, V])[] | null): Collection<K, V>;
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new <K, V>(iterable: Iterable<readonly [K, V]>): Collection<K, V>;
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readonly prototype: Collection<unknown, unknown>;
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readonly [Symbol.species]: CollectionConstructor;
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}
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/**
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* Represents an immutable version of a collection
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*/
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type ReadonlyCollection<K, V> = Omit<Collection<K, V>, 'delete' | 'ensure' | 'forEach' | 'get' | 'reverse' | 'set' | 'sort' | 'sweep'> & ReadonlyMap<K, V>;
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/**
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* Separate interface for the constructor so that emitted js does not have a constructor that overwrites itself
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*
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* @internal
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*/
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interface Collection<K, V> extends Map<K, V> {
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constructor: CollectionConstructor;
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}
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/**
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* A Map with additional utility methods. This is used throughout discord.js rather than Arrays for anything that has
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* an ID, for significantly improved performance and ease-of-use.
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*
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* @typeParam K - The key type this collection holds
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* @typeParam V - The value type this collection holds
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*/
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declare class Collection<K, V> extends Map<K, V> {
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/**
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* Obtains the value of the given key if it exists, otherwise sets and returns the value provided by the default value generator.
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*
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* @param key - The key to get if it exists, or set otherwise
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* @param defaultValueGenerator - A function that generates the default value
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* @example
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* ```ts
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* collection.ensure(guildId, () => defaultGuildConfig);
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* ```
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*/
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ensure(key: K, defaultValueGenerator: (key: K, collection: this) => V): V;
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/**
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* Checks if all of the elements exist in the collection.
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*
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* @param keys - The keys of the elements to check for
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* @returns `true` if all of the elements exist, `false` if at least one does not exist.
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*/
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hasAll(...keys: K[]): boolean;
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/**
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* Checks if any of the elements exist in the collection.
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*
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* @param keys - The keys of the elements to check for
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* @returns `true` if any of the elements exist, `false` if none exist.
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*/
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hasAny(...keys: K[]): boolean;
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/**
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* Obtains the first value(s) in this collection.
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*
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* @param amount - Amount of values to obtain from the beginning
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* @returns A single value if no amount is provided or an array of values, starting from the end if amount is negative
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*/
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first(): V | undefined;
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first(amount: number): V[];
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/**
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* Obtains the first key(s) in this collection.
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*
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* @param amount - Amount of keys to obtain from the beginning
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* @returns A single key if no amount is provided or an array of keys, starting from the end if
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* amount is negative
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*/
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firstKey(): K | undefined;
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firstKey(amount: number): K[];
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/**
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* Obtains the last value(s) in this collection.
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*
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* @param amount - Amount of values to obtain from the end
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* @returns A single value if no amount is provided or an array of values, starting from the start if
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* amount is negative
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*/
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last(): V | undefined;
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last(amount: number): V[];
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/**
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* Obtains the last key(s) in this collection.
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*
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* @param amount - Amount of keys to obtain from the end
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* @returns A single key if no amount is provided or an array of keys, starting from the start if
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* amount is negative
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*/
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lastKey(): K | undefined;
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lastKey(amount: number): K[];
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/**
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* Identical to {@link https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Array/at | Array.at()}.
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* Returns the item at a given index, allowing for positive and negative integers.
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* Negative integers count back from the last item in the collection.
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*
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* @param index - The index of the element to obtain
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*/
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at(index: number): V | undefined;
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/**
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* Identical to {@link https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Array/at | Array.at()}.
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* Returns the key at a given index, allowing for positive and negative integers.
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* Negative integers count back from the last item in the collection.
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*
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* @param index - The index of the key to obtain
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*/
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keyAt(index: number): K | undefined;
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/**
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* Obtains unique random value(s) from this collection.
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*
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* @param amount - Amount of values to obtain randomly
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* @returns A single value if no amount is provided or an array of values
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*/
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random(): V | undefined;
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random(amount: number): V[];
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/**
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* Obtains unique random key(s) from this collection.
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*
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* @param amount - Amount of keys to obtain randomly
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* @returns A single key if no amount is provided or an array
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*/
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randomKey(): K | undefined;
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randomKey(amount: number): K[];
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/**
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* Identical to {@link https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Array/reverse | Array.reverse()}
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* but returns a Collection instead of an Array.
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*/
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reverse(): this;
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/**
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* Searches for a single item where the given function returns a truthy value. This behaves like
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* {@link https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Array/find | Array.find()}.
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* All collections used in Discord.js are mapped using their `id` property, and if you want to find by id you
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* should use the `get` method. See
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* {@link https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Map/get | MDN} for details.
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*
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* @param fn - The function to test with (should return boolean)
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* @param thisArg - Value to use as `this` when executing function
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* @example
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* ```ts
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* collection.find(user => user.username === 'Bob');
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* ```
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*/
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find<V2 extends V>(fn: (value: V, key: K, collection: this) => value is V2): V2 | undefined;
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find(fn: (value: V, key: K, collection: this) => unknown): V | undefined;
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find<This, V2 extends V>(fn: (this: This, value: V, key: K, collection: this) => value is V2, thisArg: This): V2 | undefined;
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find<This>(fn: (this: This, value: V, key: K, collection: this) => unknown, thisArg: This): V | undefined;
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/**
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* Searches for the key of a single item where the given function returns a truthy value. This behaves like
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* {@link https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Array/findIndex | Array.findIndex()},
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* but returns the key rather than the positional index.
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*
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* @param fn - The function to test with (should return boolean)
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* @param thisArg - Value to use as `this` when executing function
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* @example
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* ```ts
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* collection.findKey(user => user.username === 'Bob');
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* ```
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*/
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findKey<K2 extends K>(fn: (value: V, key: K, collection: this) => key is K2): K2 | undefined;
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findKey(fn: (value: V, key: K, collection: this) => unknown): K | undefined;
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findKey<This, K2 extends K>(fn: (this: This, value: V, key: K, collection: this) => key is K2, thisArg: This): K2 | undefined;
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findKey<This>(fn: (this: This, value: V, key: K, collection: this) => unknown, thisArg: This): K | undefined;
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/**
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* Removes items that satisfy the provided filter function.
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*
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* @param fn - Function used to test (should return a boolean)
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* @param thisArg - Value to use as `this` when executing function
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* @returns The number of removed entries
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*/
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sweep(fn: (value: V, key: K, collection: this) => unknown): number;
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sweep<T>(fn: (this: T, value: V, key: K, collection: this) => unknown, thisArg: T): number;
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/**
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* Identical to
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* {@link https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Array/filter | Array.filter()},
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* but returns a Collection instead of an Array.
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*
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* @param fn - The function to test with (should return boolean)
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* @param thisArg - Value to use as `this` when executing function
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* @example
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* ```ts
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* collection.filter(user => user.username === 'Bob');
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* ```
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*/
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filter<K2 extends K>(fn: (value: V, key: K, collection: this) => key is K2): Collection<K2, V>;
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filter<V2 extends V>(fn: (value: V, key: K, collection: this) => value is V2): Collection<K, V2>;
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filter(fn: (value: V, key: K, collection: this) => unknown): Collection<K, V>;
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filter<This, K2 extends K>(fn: (this: This, value: V, key: K, collection: this) => key is K2, thisArg: This): Collection<K2, V>;
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filter<This, V2 extends V>(fn: (this: This, value: V, key: K, collection: this) => value is V2, thisArg: This): Collection<K, V2>;
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filter<This>(fn: (this: This, value: V, key: K, collection: this) => unknown, thisArg: This): Collection<K, V>;
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/**
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* Partitions the collection into two collections where the first collection
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* contains the items that passed and the second contains the items that failed.
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*
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* @param fn - Function used to test (should return a boolean)
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* @param thisArg - Value to use as `this` when executing function
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* @example
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* ```ts
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* const [big, small] = collection.partition(guild => guild.memberCount > 250);
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* ```
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*/
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partition<K2 extends K>(fn: (value: V, key: K, collection: this) => key is K2): [Collection<K2, V>, Collection<Exclude<K, K2>, V>];
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partition<V2 extends V>(fn: (value: V, key: K, collection: this) => value is V2): [Collection<K, V2>, Collection<K, Exclude<V, V2>>];
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partition(fn: (value: V, key: K, collection: this) => unknown): [Collection<K, V>, Collection<K, V>];
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partition<This, K2 extends K>(fn: (this: This, value: V, key: K, collection: this) => key is K2, thisArg: This): [Collection<K2, V>, Collection<Exclude<K, K2>, V>];
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partition<This, V2 extends V>(fn: (this: This, value: V, key: K, collection: this) => value is V2, thisArg: This): [Collection<K, V2>, Collection<K, Exclude<V, V2>>];
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partition<This>(fn: (this: This, value: V, key: K, collection: this) => unknown, thisArg: This): [Collection<K, V>, Collection<K, V>];
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/**
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* Maps each item into a Collection, then joins the results into a single Collection. Identical in behavior to
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* {@link https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Array/flatMap | Array.flatMap()}.
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*
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* @param fn - Function that produces a new Collection
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* @param thisArg - Value to use as `this` when executing function
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* @example
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* ```ts
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* collection.flatMap(guild => guild.members.cache);
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* ```
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*/
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flatMap<T>(fn: (value: V, key: K, collection: this) => Collection<K, T>): Collection<K, T>;
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flatMap<T, This>(fn: (this: This, value: V, key: K, collection: this) => Collection<K, T>, thisArg: This): Collection<K, T>;
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/**
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* Maps each item to another value into an array. Identical in behavior to
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* {@link https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Array/map | Array.map()}.
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*
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* @param fn - Function that produces an element of the new array, taking three arguments
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* @param thisArg - Value to use as `this` when executing function
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* @example
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* ```ts
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* collection.map(user => user.tag);
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* ```
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*/
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map<T>(fn: (value: V, key: K, collection: this) => T): T[];
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map<This, T>(fn: (this: This, value: V, key: K, collection: this) => T, thisArg: This): T[];
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/**
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* Maps each item to another value into a collection. Identical in behavior to
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* {@link https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Array/map | Array.map()}.
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*
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* @param fn - Function that produces an element of the new collection, taking three arguments
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* @param thisArg - Value to use as `this` when executing function
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* @example
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* ```ts
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* collection.mapValues(user => user.tag);
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* ```
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*/
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mapValues<T>(fn: (value: V, key: K, collection: this) => T): Collection<K, T>;
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mapValues<This, T>(fn: (this: This, value: V, key: K, collection: this) => T, thisArg: This): Collection<K, T>;
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/**
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* Checks if there exists an item that passes a test. Identical in behavior to
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* {@link https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Array/some | Array.some()}.
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*
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* @param fn - Function used to test (should return a boolean)
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* @param thisArg - Value to use as `this` when executing function
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* @example
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* ```ts
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* collection.some(user => user.discriminator === '0000');
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* ```
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*/
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some(fn: (value: V, key: K, collection: this) => unknown): boolean;
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some<T>(fn: (this: T, value: V, key: K, collection: this) => unknown, thisArg: T): boolean;
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/**
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* Checks if all items passes a test. Identical in behavior to
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* {@link https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Array/every | Array.every()}.
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*
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* @param fn - Function used to test (should return a boolean)
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* @param thisArg - Value to use as `this` when executing function
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* @example
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* ```ts
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* collection.every(user => !user.bot);
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* ```
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*/
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every<K2 extends K>(fn: (value: V, key: K, collection: this) => key is K2): this is Collection<K2, V>;
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every<V2 extends V>(fn: (value: V, key: K, collection: this) => value is V2): this is Collection<K, V2>;
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every(fn: (value: V, key: K, collection: this) => unknown): boolean;
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every<This, K2 extends K>(fn: (this: This, value: V, key: K, collection: this) => key is K2, thisArg: This): this is Collection<K2, V>;
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every<This, V2 extends V>(fn: (this: This, value: V, key: K, collection: this) => value is V2, thisArg: This): this is Collection<K, V2>;
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every<This>(fn: (this: This, value: V, key: K, collection: this) => unknown, thisArg: This): boolean;
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/**
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* Applies a function to produce a single value. Identical in behavior to
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* {@link https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Array/reduce | Array.reduce()}.
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*
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* @param fn - Function used to reduce, taking four arguments; `accumulator`, `currentValue`, `currentKey`,
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* and `collection`
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* @param initialValue - Starting value for the accumulator
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* @example
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* ```ts
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* collection.reduce((acc, guild) => acc + guild.memberCount, 0);
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* ```
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*/
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reduce<T>(fn: (accumulator: T, value: V, key: K, collection: this) => T, initialValue?: T): T;
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/**
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* Identical to
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* {@link https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Map/forEach | Map.forEach()},
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* but returns the collection instead of undefined.
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*
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* @param fn - Function to execute for each element
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* @param thisArg - Value to use as `this` when executing function
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* @example
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* ```ts
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* collection
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* .each(user => console.log(user.username))
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* .filter(user => user.bot)
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* .each(user => console.log(user.username));
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* ```
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*/
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||
|
|
each(fn: (value: V, key: K, collection: this) => void): this;
|
||
|
|
each<T>(fn: (this: T, value: V, key: K, collection: this) => void, thisArg: T): this;
|
||
|
|
/**
|
||
|
|
* Runs a function on the collection and returns the collection.
|
||
|
|
*
|
||
|
|
* @param fn - Function to execute
|
||
|
|
* @param thisArg - Value to use as `this` when executing function
|
||
|
|
* @example
|
||
|
|
* ```ts
|
||
|
|
* collection
|
||
|
|
* .tap(coll => console.log(coll.size))
|
||
|
|
* .filter(user => user.bot)
|
||
|
|
* .tap(coll => console.log(coll.size))
|
||
|
|
* ```
|
||
|
|
*/
|
||
|
|
tap(fn: (collection: this) => void): this;
|
||
|
|
tap<T>(fn: (this: T, collection: this) => void, thisArg: T): this;
|
||
|
|
/**
|
||
|
|
* Creates an identical shallow copy of this collection.
|
||
|
|
*
|
||
|
|
* @example
|
||
|
|
* ```ts
|
||
|
|
* const newColl = someColl.clone();
|
||
|
|
* ```
|
||
|
|
*/
|
||
|
|
clone(): Collection<K, V>;
|
||
|
|
/**
|
||
|
|
* Combines this collection with others into a new collection. None of the source collections are modified.
|
||
|
|
*
|
||
|
|
* @param collections - Collections to merge
|
||
|
|
* @example
|
||
|
|
* ```ts
|
||
|
|
* const newColl = someColl.concat(someOtherColl, anotherColl, ohBoyAColl);
|
||
|
|
* ```
|
||
|
|
*/
|
||
|
|
concat(...collections: ReadonlyCollection<K, V>[]): Collection<K, V>;
|
||
|
|
/**
|
||
|
|
* Checks if this collection shares identical items with another.
|
||
|
|
* This is different to checking for equality using equal-signs, because
|
||
|
|
* the collections may be different objects, but contain the same data.
|
||
|
|
*
|
||
|
|
* @param collection - Collection to compare with
|
||
|
|
* @returns Whether the collections have identical contents
|
||
|
|
*/
|
||
|
|
equals(collection: ReadonlyCollection<K, V>): boolean;
|
||
|
|
/**
|
||
|
|
* The sort method sorts the items of a collection in place and returns it.
|
||
|
|
* The sort is not necessarily stable in Node 10 or older.
|
||
|
|
* The default sort order is according to string Unicode code points.
|
||
|
|
*
|
||
|
|
* @param compareFunction - Specifies a function that defines the sort order.
|
||
|
|
* If omitted, the collection is sorted according to each character's Unicode code point value, according to the string conversion of each element.
|
||
|
|
* @example
|
||
|
|
* ```ts
|
||
|
|
* collection.sort((userA, userB) => userA.createdTimestamp - userB.createdTimestamp);
|
||
|
|
* ```
|
||
|
|
*/
|
||
|
|
sort(compareFunction?: Comparator<K, V>): this;
|
||
|
|
/**
|
||
|
|
* The intersect method returns a new structure containing items where the keys and values are present in both original structures.
|
||
|
|
*
|
||
|
|
* @param other - The other Collection to filter against
|
||
|
|
*/
|
||
|
|
intersect<T>(other: ReadonlyCollection<K, T>): Collection<K, T>;
|
||
|
|
/**
|
||
|
|
* The subtract method returns a new structure containing items where the keys and values of the original structure are not present in the other.
|
||
|
|
*
|
||
|
|
* @param other - The other Collection to filter against
|
||
|
|
*/
|
||
|
|
subtract<T>(other: ReadonlyCollection<K, T>): Collection<K, V>;
|
||
|
|
/**
|
||
|
|
* The difference method returns a new structure containing items where the key is present in one of the original structures but not the other.
|
||
|
|
*
|
||
|
|
* @param other - The other Collection to filter against
|
||
|
|
*/
|
||
|
|
difference<T>(other: ReadonlyCollection<K, T>): Collection<K, T | V>;
|
||
|
|
/**
|
||
|
|
* Merges two Collections together into a new Collection.
|
||
|
|
*
|
||
|
|
* @param other - The other Collection to merge with
|
||
|
|
* @param whenInSelf - Function getting the result if the entry only exists in this Collection
|
||
|
|
* @param whenInOther - Function getting the result if the entry only exists in the other Collection
|
||
|
|
* @param whenInBoth - Function getting the result if the entry exists in both Collections
|
||
|
|
* @example
|
||
|
|
* ```ts
|
||
|
|
* // Sums up the entries in two collections.
|
||
|
|
* coll.merge(
|
||
|
|
* other,
|
||
|
|
* x => ({ keep: true, value: x }),
|
||
|
|
* y => ({ keep: true, value: y }),
|
||
|
|
* (x, y) => ({ keep: true, value: x + y }),
|
||
|
|
* );
|
||
|
|
* ```
|
||
|
|
* @example
|
||
|
|
* ```ts
|
||
|
|
* // Intersects two collections in a left-biased manner.
|
||
|
|
* coll.merge(
|
||
|
|
* other,
|
||
|
|
* x => ({ keep: false }),
|
||
|
|
* y => ({ keep: false }),
|
||
|
|
* (x, _) => ({ keep: true, value: x }),
|
||
|
|
* );
|
||
|
|
* ```
|
||
|
|
*/
|
||
|
|
merge<T, R>(other: ReadonlyCollection<K, T>, whenInSelf: (value: V, key: K) => Keep<R>, whenInOther: (valueOther: T, key: K) => Keep<R>, whenInBoth: (value: V, valueOther: T, key: K) => Keep<R>): Collection<K, R>;
|
||
|
|
/**
|
||
|
|
* The sorted method sorts the items of a collection and returns it.
|
||
|
|
* The sort is not necessarily stable in Node 10 or older.
|
||
|
|
* The default sort order is according to string Unicode code points.
|
||
|
|
*
|
||
|
|
* @param compareFunction - Specifies a function that defines the sort order.
|
||
|
|
* If omitted, the collection is sorted according to each character's Unicode code point value,
|
||
|
|
* according to the string conversion of each element.
|
||
|
|
* @example
|
||
|
|
* ```ts
|
||
|
|
* collection.sorted((userA, userB) => userA.createdTimestamp - userB.createdTimestamp);
|
||
|
|
* ```
|
||
|
|
*/
|
||
|
|
sorted(compareFunction?: Comparator<K, V>): Collection<K, V>;
|
||
|
|
toJSON(): V[];
|
||
|
|
private static defaultSort;
|
||
|
|
/**
|
||
|
|
* Creates a Collection from a list of entries.
|
||
|
|
*
|
||
|
|
* @param entries - The list of entries
|
||
|
|
* @param combine - Function to combine an existing entry with a new one
|
||
|
|
* @example
|
||
|
|
* ```ts
|
||
|
|
* Collection.combineEntries([["a", 1], ["b", 2], ["a", 2]], (x, y) => x + y);
|
||
|
|
* // returns Collection { "a" => 3, "b" => 2 }
|
||
|
|
* ```
|
||
|
|
*/
|
||
|
|
static combineEntries<K, V>(entries: Iterable<[K, V]>, combine: (firstValue: V, secondValue: V, key: K) => V): Collection<K, V>;
|
||
|
|
}
|
||
|
|
/**
|
||
|
|
* @internal
|
||
|
|
*/
|
||
|
|
type Keep<V> = {
|
||
|
|
keep: false;
|
||
|
|
} | {
|
||
|
|
keep: true;
|
||
|
|
value: V;
|
||
|
|
};
|
||
|
|
/**
|
||
|
|
* @internal
|
||
|
|
*/
|
||
|
|
type Comparator<K, V> = (firstValue: V, secondValue: V, firstKey: K, secondKey: K) => number;
|
||
|
|
|
||
|
|
/**
|
||
|
|
* The {@link https://github.com/discordjs/discord.js/blob/main/packages/collection/#readme | @discordjs/collection} version
|
||
|
|
* that you are currently using.
|
||
|
|
*/
|
||
|
|
declare const version: string;
|
||
|
|
|
||
|
|
export { Collection, CollectionConstructor, Comparator, Keep, ReadonlyCollection, version };
|