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types

Types of dictionary keys and values

Since R2022b

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    Syntax

    [keyType,valueType] = types(d)
    keyType = types(d)

    Description

    example

    [keyType,valueType] = types(d) returns the data types of keys and values of the specified dictionary. If d is an unconfigured dictionary, then types returns a <missing> string scalar.

    keyType = types(d) returns the data types of keys.

    Examples

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    Open Live Script

    Create a dictionary containing three key-value pairs that map numbers to strings. 

    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 types to return the types for the keys and values of the dictionary.

    [keyType,valueType] = types(d)
    keyType = 
"double"

    valueType = 
"string"

    Input Arguments

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    Dictionary, specified as a dictionary object.

    Output Arguments

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    Data type of dictionary keys, returned as a string scalar.

    Value data type, returned as a string scalar.

    Version History

    Introduced in R2022b

    See Also

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