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1.90.2 Interval: basic

at: index
Answer the index-th element of the receiver.


at: index put: anObject
This method should not be called for instances of this class.


collect: aBlock
Evaluate the receiver for each element in aBlock, collect in an array the result of the evaluations.


do: aBlock
Evaluate the receiver for each element in aBlock


reverse
Answer a copy of the receiver with all of its items reversed


size
Answer the number of elements in the receiver.


species
Answer `Array'.