---
title: "David Ayoola (@david_ayo) | Hashnode"
description: "Software/web engineer. Read the latest articles by David Ayoola on Hashnode."
url: "https://hashnode.com/@david_ayo"
---

@david\_ayo

# David Ayoola

@david\_ayo · 🌍 · Joined April 2020

Software/web engineer

### [Big-O Notation, what it's OL about!](https://sublimedev.hashnode.dev/big-o-notation-what-its-ol-about?utm_source=hashnode&utm_medium=feed)

To give some context, Big-O Notation or rather Big-O Time Complexity was one of the subjects I was taught back in school, but I slept through some of those classes 😅. Reading a book a while ago sparked my interest in the subject again, so I wrote th...

[sublimedev.hashnode.dev](https://sublimedev.hashnode.dev/big-o-notation-what-its-ol-about?utm_source=hashnode&utm_medium=feed)

[May 26, 2020](https://hashnode.com/posts/big-o-notation-what-its-ol-about/5ed46264123fdcb70b936969)

### [Dump the if-else, use these short-hand techniques instead.](https://sublimedev.hashnode.dev/dump-the-if-else-use-these-short-hand-techniques-instead?utm_source=hashnode&utm_medium=feed)

Have you ever had to write a series of if-else statements and wondered if it could be shorter? Like the code block below, maybe you figured out how to use a shorthand statement but don't fully grasp the context of using them? Well, no need to fear, D...

[sublimedev.hashnode.dev](https://sublimedev.hashnode.dev/dump-the-if-else-use-these-short-hand-techniques-instead?utm_source=hashnode&utm_medium=feed)

[4](https://hashnode.com/posts/dump-the-if-else-use-these-short-hand-techniques-instead/5ea5f8830135fc417662fbeb) [Apr 27, 2020](https://hashnode.com/posts/dump-the-if-else-use-these-short-hand-techniques-instead/5ea5f8830135fc417662fbeb)

### [Hello HashNode...](https://sublimedev.hashnode.dev/hello-hashnode?utm_source=hashnode&utm_medium=feed)

Following the developer's tradition, I'd like to properly introduce myself to hashcode with a hello world post. Looking forward to learning a lot here, meeting awesome people and sharing resourceful posts on my blog ⚡⚡⚡. You can check out my first so...

[sublimedev.hashnode.dev](https://sublimedev.hashnode.dev/hello-hashnode?utm_source=hashnode&utm_medium=feed)

[Apr 26, 2020](https://hashnode.com/posts/hello-hashnode/5ea6049112892a3c760b91d7)