Back to Course Collected Ruby 0% Complete 0/0 Steps Search (Entire Site)Search Collected Ruby Finding and Filtering Inverted Grep Module 4, Topic 4 In Progress ← Previous Next→ Inverted Grep Module Progress 0% Complete A new and long-awaited feature in Ruby's Enumerable module. Oop, this content isn't available to visitors. Please register or log in to continue! Or you could purchase this course. Responses You must be logged in to post a comment.