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Yakov Kiffel
Yakov Kiffel

Yakov Kiffel

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Yakov Kiffel
Yakov Kiffel
Sep 6, 2017 · 2 min read

Listy Things — Arrays, Stacks, Queues, and Linked Lists

Data structures are cool. There, I said it.

Arrays

Everyone knows about arrays. An array is a collection of elements with indices ranging from zero to one less than the length of…

Yakov Kiffel
Yakov Kiffel
Aug 25, 2017 · 5 min read

Git and Github: A Simple Guide to Keeping Your Master Branch Safe by Using a Separate Servant Branch

So you’ve heard of Github, and you know that you can use it to collaborate on code with other people and store the code online. But what are branches and how…

Yakov Kiffel
Yakov Kiffel
Aug 4, 2017 · 3 min read

Active Record Callbacks: What Happens When

Active Record provides a bunch of callback methods you can insert into a model that enable you to call other methods at various points in the life of an object. I decided to test some of them to see them working in action in my Tracker model.