package batteries

As range, without the label.

5 -- 10 is the enumeration 5,6,7,8,9,10. 10 -- 5 is the empty enumeration

As (--) but without the right endpoint

5 --^ 10 is the enumeration 5,6,7,8,9.

(a, step) --. b) creates a float enumeration from a to b with an increment of step between elements.

(5.0, 1.0) --. 10.0 is the enumeration 5.0,6.0,7.0,8.0,9.0,10.0. (10.0, -1.0) --. 5.0 is the enumeration 10.0,9.0,8.0,7.0,6.0,5.0. (10.0, 1.0) --. 1.0 is the empty enumeration.

As --, but accepts enumerations in reverse order.

5 --- 10 is the enumeration 5,6,7,8,9,10. 10 --- 5 is the enumeration 10,9,8,7,6,5.

As ( -- ), but for characters.

Filtering (pronounce this operator name "such that").

For instance, (1 -- 37) // odd is the enumeration of all odd numbers between 1 and 37.

Mapping operators.

These operators have the same meaning as function map but are sometimes more readable than this function, when chaining several transformations in a row.

Map combined with filter. Same as filter_map.