Add indication methods to Array to determine what element you are on!
stand in replacement for Enumerable#each that will print a progress bar to the console as it loops
Each_with_anim is easiest to make progress bar and other cool animations in CUI.
Contextual information about an element in an each loop
Use `each_with_progressbar` to show a progressbar while iterating.
Rank iterator for Enumerable
The each-with-flag library provides Enumerable methods "each_with_flag" and "each_with_index_with_flag" that expand standard methods "each" and "each_with_index" adding to yield block flags of first, has previous, surrounded, has next and has last element.
each with logging gem.
Iterator with real time intervals
TODO
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