KHALIL STEMMLER

Essential software development patterns, principles and tutorials with modern JavaScript and TypeScript.

By a software developer / designer, musician based out of the GTA currently working as a JavaScript consultant.

I co-founded Univjobs in 2017 and learned a lot about making code scale. At some point during my current work at Aquent Dev6 as a consultant and reading as many books on software as I could digest, I've come to realize that there were a lot of pitfalls I could have avoided if I knew the patterns and principles to guide me. That's what this site is about: things I think all professional software people should know.

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Migrate Primary Keys to UUIDs - Sequelize/NodeWeb Development

Apr 20th, 2019 • 9 min read

databasedddsequelize

This is how and why I took upon myself the hellish task of migrating an existing Sequelize + TypeScript application to use UUIDs i...

by Khalil Stemmler

How to Build a Related Posts Component with Gatsby.jsWeb Development

Apr 16th, 2019 • 7 min read

gatsbyreactjavascript

Here's how to build a "Related Posts" component for your Gatsby.js site.

by Khalil Stemmler

An Introduction to Domain-Driven Design - DDD w/ TypeScriptDomain-Driven Design

Apr 9th, 2019 • 9 min read

dddtypescriptsoftware design

Domain-Driven Design is the approach to software development which enables us to translate complex problem domains into rich, expr...

by Khalil Stemmler

Value Objects - DDD w/ TypeScriptDomain-Driven Design

Apr 7th, 2019 • 6 min read

dddtypescriptsoftware designvalue object

Value Objects are one of the primary components of Domain-Driven Design. Here's a simple Value Object class in TypeScript.

by Khalil Stemmler

When To Use TypeScript - A Detailed Guide Through Common ScenariosWeb Development

Apr 6th, 2019 • 15 min read

typescriptsoftware designprofessionalism

Strap yourself in. In this guide, we compare when it's absolutely vital to be using TypeScript, the strictly-typed programming lan...

by Khalil Stemmler

Fix Macbook Audio Not Working on DiscordTechnology & Hardware

Nov 25th, 2018 • 1 min read

audiomacbook

Use this script to fix Discord's audio problems on Mac.

by Khalil Stemmler

recently edited wikis

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Abstract Factory

Updated Apr 16th, 2019 • 5 min read

design patterns

The abstract factory pattern provides a way to encapsulate a group of individual factories that have a common theme without specifying their concrete classes.

YAGNI

Updated Apr 10th, 2019 • 1 min read

design principles

'You aren't gonna need it'