Slices

Slices are used to access a range of items in an iterable (strings, arrays, tables). They're enclosed in double angle brackets. Slices have three optional parameters delimited by .. — start, stop, and step.

Slices can be either applied to indexable objects (like String or Array) or serve as stand-alone objects. Slice objects are hashable.

Iterating over a slice object generates integers from start (inclusive) to stop (exclusive) separated by gaps of size step.

If start is not specified, it defaults to 0.
If stop is not specified, it defaults to 2⁶³ - 1.
If step is not specified, it defaults to 1.

str: "abcdefgh";
str<<\>> :: "a";
str<<//..//\>> :: "def";
str<</..//\../\>> :: "bdf";

All valid slice parameters are as follows:

Slice	Returns
`<<>>`	the whole iterable
`<<index>>`	the item at position `index`
`<<..stop>>`	items up to index `stop`
`<<....step>>`	items separated by gaps of size `step`
`<<start..>>`	items starting from index `start`
`<<..stop..step>>`	items up to index `stop` separated by gaps of size `step`
`<<start....step>>`	items starting from index `start` separated by gaps of size `step`
`<<start..stop>>`	items starting from index `start` up to index `stop`
`<<start..stop..step>>`	items starting from index `start` up to index `stop` separated by gaps of size `step`