count keys in map(name of map)
| Group | 
Returns the number of elements of a Named Map a. If no name is specified, the name default will be used.
Description of Parameters
| Parameter | Description | 
| a | (optional) Name of map. Default: default | 
Examples
A map MyMap with three elements is defined.
| Parameter a | Result | 
| MyMap | 3 | 
| MyOtherMap | 0 | 
See Also
- add to inheritance-map(key a, value b, name of map c, inheritance level d, regex for empty e) 
- csv-into-map(file a, [mapname b], [keycol(s) c], [csv delim d], [csv encoding e], [clear first f]) 
- fill-map-from-fields( map a, prefix b, index c, hidden d, [processing e] ) 
- get value from map(key a, name of map b, delimiter c, item d) 
- increase map value(key a, value b, map name c, skip empty d) 
- select into map(a,b,[param &1 = c], d,e, f,g,h,i,j], delimiter k, map l, m)