MAP_KEYEXISTS

Checks whether a key exists in a map or not.

Description

Checks whether a key exists in a map or not. If the the specified key exists in the given map, then the output is "1" otherwise it is "0".

Syntax

MAP_KEYEXISTS [Map name] [Key] [Output variable]

Command parameters

Command parameter	Assignment	Value format	Input options
Map name	Required	String	Local, variable
Key	Required	String	Local, variable
Output variable	Required	String	Local, variable

Map name:

Name of the map.

Key:

The string acting as the key.

Output variable:

Name of the variable that will contain the output. Output values: "1" or "0".

Sample code

Command only:

MAP_KEYEXISTS Map1 Key1 Key1_Exists

Command + key creation + checking:

MAP_CREATE Map1

MAP_SET Map1 Key1 123

MAP_KEYEXISTS Map1 Key1 Key1_Exists
MAP_KEYEXISTS Map1 Key2 Key2_Exists