keys - Class: containers.Map
Package: containers

Identify keys of containers.Map object

Syntax

Description

keySet = keys(mapObj) returns cell array keySet, which contains all of the keys in mapObj.

Input Arguments

mapObj

Object of class containers.Map.

Output Arguments

keySet

1-by-n cell array, where n is the number of keys in mapObj.

Examples

Get the Keys in a Map

Create a map, and view the keys in the map:

myKeys = {'a','b','c'};
myValues = [1,2,3];
mapObj = containers.Map(myKeys,myValues);

keySet = keys(mapObj)

This code returns 1-by-3 cell array keySet:

keySet = 
    'a'    'b'    'c'

See Also

containers.Map | isKey | remove | values

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