So you want to start conference speaking? Start with an idea

January 05, 20203 min read

You are 110% qualified to be a conference speaker because everyone has a perspective to share. Whether you have decades of experience or you’re just getting started in your field, your unique perspective is valuable to an audience.

How publishing a blog post turned into a 2 hour debugging sesssion

November 27, 201910 min read

Last weekend I tried to publish a blog post and embarked on a 2 and a half hour troubleshooting journey. What should have been a single button click ate my whole morning.

Polymorphism and yarn crafts

November 24, 20195 min read

There are multiple different crafts, such as knitting, weaving, or crocheting, in which you could create a fabric. Regardless of which craft you choose, you want to do the same thing: create fabric. If we were to model that programmatically, we would take advantage of polymorphism.

Inheritance and gardening

November 20, 20193 min read

Inheritance supports reusability in programming. To write an application that prints a plant's care instruction cards for the garden center, we can use inheritance to share the code that prints the instructions.

Abstraction and remote controls

November 18, 20193 min read

Using a remote control for your TV is an abstraction. You push a button and a thing happens. And you only have a few buttons to choose from.

Encapsulation and horses

November 16, 20192 min read

The first principle of object-oriented programming is encapsulation. Encapsulation is when you "hide" an object's state from other objects.

Trees and Harry Potter's Triwizard tournament

November 15, 20196 min read

If you're a big Harry Potter fan, you probably enjoyed the Triwizard Maze. When racing through the maze, the competitors were faced with decisions about which path to take. Modeling these choices can be done using a tree data structure.

Queues and lunch lines

November 05, 20193 min read

Waiting in a line—or as the British call it, “queueing”—is a literal visualization of a queue data structure. The first person in line is the first person who gets whatever they’re waiting for and leaves the line.

Stacks and PEZ dispensers

November 03, 20193 min read

When you fill a PEZ dispenser, you push the candy from the top down. When you eat the candy, you pop a piece off the top of the literal stack of pieces. A stack data structure behaves the same way.

Step-by-step guide to create fair and representative code challenges

October 30, 20199 min read

Code challenges should be representative of the work a candidate will do for the role they are applying for. Rewriting code challenges to fit a role is a lot of work, but here's a step by step guide to simplify it.