Category Archives: Software

Posts about programming, computers, and my work at tech companies.

How do I make protocol methods optional in Objective-C?

Posted on September 2, 2020 by Sheldon "Don" Sandbekkhaug

Imagine you have a protocol in Obective-C. What if you want to make some properties or methods optional? You can use the optional keyword. Not all objects to implement the protocol will have the -speed method. Trying to call -speed … Continue reading →

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A Quiz to Practice Big O for a Software Interview

Posted on July 24, 2020 by Sheldon "Don" Sandbekkhaug

Estimating big O is a crucial part of software engineering interviews. If you can write decent code, but can’t analyze big O, interviewers will mentally subtract points from your score. Tips for analyzing Big O Consider the worst case Think … Continue reading →

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How to Structure Your Presentation to be Clear and Convincing

Posted on June 11, 2019 by Sheldon "Don" Sandbekkhaug

Have you ever sat in a meeting where you felt bored? You had to endure a presentation where the speaker read several paragraphs per slide, all in monotone. Some rando in the room kept asking useless questions, prolonging the presentation. … Continue reading →

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How to Get an Interview at a Major Tech Company

Posted on April 21, 2019 by Sheldon "Don" Sandbekkhaug

0% money-back guarantee – The Town of Muleshoe – How to get rejected – Captain Picard’s wisdom If you’re reading this, you’re looking for a software engineering job at a major tech company. If you’re in sales, HR, or any … Continue reading →

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How to Make Loads of Money By Ignoring Your Followers

Posted on June 6, 2018 by Sheldon "Don" Sandbekkhaug

How to get likes – 50 California Rolls – Customers vs Window Shoppers Continue reading →

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