Function flatMapDeep

  • flatMapDeep<T>(collection): T[]

  • This method is like _.flatMap except that it recursively flattens the mapped results.

    Type Parameters

    • T

    Parameters

    • collection: undefined | null | Dictionary<T | ListOfRecursiveArraysOrValues<T>> | NumericDictionary<T | ListOfRecursiveArraysOrValues<T>>

      The collection to iterate over.

    Returns T[]

    Returns the new flattened array.

    Since

    4.7.0

    Example

    function duplicate(n) {
      return [[[n, n]]];
    }

    _.flatMapDeep([1, 2], duplicate);
    // => [1, 1, 2, 2]
  • flatMapDeep<T, TResult>(collection, iteratee): TResult[]

  • Type Parameters

    • T

    • TResult

    Parameters

    • collection: undefined | null | List<T>
    • iteratee: ListIterator<T, TResult | ListOfRecursiveArraysOrValues<TResult>>

    Returns TResult[]

    See

    _.flatMapDeep

  • flatMapDeep<T, TResult>(collection, iteratee): TResult[]

  • Type Parameters

    • T extends object

    • TResult

    Parameters

    • collection: undefined | null | T
    • iteratee: ObjectIterator<T, TResult | ListOfRecursiveArraysOrValues<TResult>>

    Returns TResult[]

    See

    _.flatMapDeep

  • flatMapDeep(collection, iteratee): any[]

  • Parameters

    • collection: undefined | null | object
    • iteratee: string

    Returns any[]

    See

    _.flatMapDeep

  • flatMapDeep(collection, iteratee): boolean[]

  • Parameters

    • collection: undefined | null | object
    • iteratee: object

    Returns boolean[]

    See

    _.flatMapDeep

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