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numEntries

Number of key-value pairs in dictionary

Since R2022b

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    Syntax

    n = numEntries(d)

    Description

    n = numEntries(d) returns the number of key-value pairs stored in the specified dictionary. If d is an unconfigured dictionary, then numEntries returns 0.

    example

    Examples

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    Open Live Script

    Create a dictionary containing several key-value pairs.

    names = ["Unicycle" "Bicycle" "Tricycle"];
wheels = [1 2 3];
d = dictionary(wheels,names)
    d =

  dictionary (double --> string) with 3 entries:

    1 --> "Unicycle"
    2 --> "Bicycle"
    3 --> "Tricycle"

    Use numEntries to determine how many key-value pairs are stored in d.

    n = numEntries(d)
    n = 
3

    Input Arguments

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    Dictionary, specified as a dictionary object.

    Extended Capabilities

    Version History

    Introduced in R2022b

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    See Also

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