@pkerschbaum/code-oss-file-service/out/vs/base/common/collections.d.ts

VS Code ([microsoft/vscode](https://github.com/microsoft/vscode)) includes a rich "`FileService`" and "`DiskFileSystemProvider`" abstraction built on top of Node.js core modules (`fs`, `path`) and Electron's `shell` module. This package allows to use that

/**
 * An interface for a JavaScript object that
 * acts a dictionary. The keys are strings.
 */
export declare type IStringDictionary<V> = Record<string, V>;
/**
 * An interface for a JavaScript object that
 * acts a dictionary. The keys are numbers.
 */
export declare type INumberDictionary<V> = Record<number, V>;
/**
 * Returns an array which contains all values that reside
 * in the given dictionary.
 */
export declare function values<T>(from: IStringDictionary<T> | INumberDictionary<T>): T[];
/**
 * Iterates over each entry in the provided dictionary. The iterator allows
 * to remove elements and will stop when the callback returns {{false}}.
 */
export declare function forEach<T>(from: IStringDictionary<T> | INumberDictionary<T>, callback: (entry: {
    key: any;
    value: T;
}, remove: () => void) => any): void;
/**
 * Groups the collection into a dictionary based on the provided
 * group function.
 */
export declare function groupBy<K extends string | number | symbol, V>(data: V[], groupFn: (element: V) => K): Record<K, V[]>;
export declare function fromMap<T>(original: Map<string, T>): IStringDictionary<T>;
export declare function diffSets<T>(before: Set<T>, after: Set<T>): {
    removed: T[];
    added: T[];
};
export declare function diffMaps<K, V>(before: Map<K, V>, after: Map<K, V>): {
    removed: V[];
    added: V[];
};
export declare class SetMap<K, V> {
    private map;
    add(key: K, value: V): void;
    delete(key: K, value: V): void;
    forEach(key: K, fn: (value: V) => void): void;
}
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