rc-js-util/src/dictionary/impl/dictionary-foreach.ts

A collection of TS and C++ utilities to help writing performant and correct applications, achieved through strict typing and (removable) invariant checking.

/**
 * @public
 * Like `Array.forEach` but for arbitrary objects.
 *
 * @remarks
 * See {@link dictionaryForEach}.
 */
export function dictionaryForEach<TDict extends object, TKey extends keyof TDict>
(
    dictionary: TDict,
    callback: (item: TDict[TKey], key: TKey, dictionary: TDict) => void
)
    : void
{
    const keys = Object.keys(dictionary) as TKey[];

    for (let i = 0, iEnd = keys.length; i < iEnd; ++i)
    {
        const key = keys[i];
        callback(dictionary[key], key, dictionary);
    }
}