getmap

SpecialNodes getmap

output ports:
Name	Type	Description	Optional
default	?1	value to output when key is absent from the map	yes

input ports:
Name	Type	Description	Optional
map	map<?0>to<?1>	a map	no
key	?0	a key to be looked up in the map	no

output ports:
Name	Type	Description	Optional
output	?0	the value associated with key in the map, and default if key is absent from the map	no

getmap reads a map and key from its input ports, and outputs the value associated with key in the map. if key is not bound in the map, then default is output, and if default is not given, then the default value for the value type (?1) is output.