Map

Operators and functions for working with map arrays (map type) are described here. map.typename means that you can specify any type name but in the case of the binary operator this type must be the same in both maps.

• bool( map.typename m ) bool

• Del( map.typename m, str key ) map.typename

• IsKey( map.typename m, str key ) bool

• Key( map.typename m, int index ) str

Operators

Operator	Result	Description
* map.typename	int	Returns the number of elements in the map.
map.typename ?	bool	Calls bool(map.typename).
map.typename = map.typename	map.typename	Assignment operator.
map.typename &= map.typename	map.typename	Creates a clone of the map. The new variable will work with the same data set.
map.typename [ str ]	typename	Sets/gets a map value by key.

Functions

bool(map.typename m) bool

The bool function returns false if the map is empty, otherwise, it returns true.

Del( map.typename m, str key ) map.typename

The Del function deletes the specified key and its value from the map array. The m parameter is returned.

IsKey( map.typename m, str key ) bool

The IsKey function returns true if there is a value with the specified key in the map and false, otherwise.

Key( map.typename m, int index ) str

The Key function returns the item key by its index. For example, this function can be used in the for loop to get the item key.

for val,i in mymap {
    Println("\(Key(mymap, i)):\(val)")
}