March 2002
Beginner
560 pages
12h 14m
English
Content preview from Sams Teach Yourself Ruby in 21 DaysBecome an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month,
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Summary
Today we learned about recursion and discussed its advantages and disadvantages. We explored memoization as a way to make recursive code remember past results, thus speeding it up dramatically in some situations.
Remember, recursion is your friend. Faced with a journey of a great distance, the iterative thinker says “This is going to take a lot of steps,” but the recursive thinker says “I will take one step, then start a brand-new journey that is slightly shorter than this one.” Guess who suffers less stress.
When you have a knotty logic problem in front of you, be on the lookout for ways to divide it into a recurrence relation (what “one step” in the solution should look like) and a base case (how you can recognize when the task is almost ...
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O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.Julian F.
I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.Amir M.
I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.