Operator overloading: slices [begin .. end]

[GWRon]

When I saw that @scaremonger used the "myTIntMap[intKey]"-array-approach I asked myself if it would be useable to have the "array slicing" being kind of useable too.

newIntMap = oldIntMap[beginKey .. endKey]
'or maybe only (which would be "more similar" to arrays
newIntMap = oldIntMap[beginIndex .. endIndex]

This way it would be really nifty to extract eg a subset from an "sparse ID map" (1,5,6,10,11,12 -> oldMap[5 .. 11] would extract 5,6,10,11) - with array like behaviour one needed to find the "index/position" of a given key first.

Of course you might be able to do similar stuff in a T(xyz)Map on your own with a custom "extractMap(condition...)" function/method.

So just see this as a suggestion / brain fart / idea. Maybe it has benefits I am not even thinking about - or culprits not solveable to easily :)

... or is "slicing" overrideable already?