Function ensureArray

  • ensureArray<T>(maybeArray: undefined | T | T[]): T[]

    Ensures that the given input is returned as an array.

    This function takes a value that might be a single item, an array, or undefined and returns it as an array:

    • If the input is undefined, an empty array is returned.
    • If the input is already an array, it is returned as-is.
    • If the input is a single item, it is wrapped in an array.

    Type Parameters

    • T

      The type of the elements in the array.

    Parameters

    • maybeArray: undefined | T | T[]

      The value that may be a single item, an array, or undefined.

    Returns T[]

    An array containing the input value(s). If the input is undefined, an empty array is returned.

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