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v4.2
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v4.2

    size()

    Function size() calculates the length of the array, namely, the number of elements in the array.

    Arguments:

    • Array <array>

    Returns:

    • Length <number>

    Common Usage

    Example: Count the number of the neighbors of Card CA001

    khop().src({_id == "CA001"}).depth(1) as n1
    return size(collect(n1))
    
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