Trevor I. Lasn Thoughts
https://www.trevorlasn.com/ (RSS)
Deep dive into JavaScript Symbols - what they are, why they matter, and how to use them effectively
How fake job postings became a systemic problem in tech recruiting
Scrum is failing engineering teams and what it's actually costing us
A practical guide to left and right shift operators in JavaScript
Stop mixing try/catch with Promise chains - JavaScript's new Promise.try handles return values, Promises, and errors uniformly
Understanding the new import attributes syntax and why we can't rely on file extensions alone
How I ditched Google Analytics bloat for a privacy-focused analytics tool that bypasses ad blockers
Use the &&= operator to safely update truthy values while preserving falsy states
A guide to using ??= in JavaScript to handle null and undefined values elegantly
Welcome to the future of corporate leadership. It's efficient, profitable, and utterly inhuman
Why the first day back can reveal everything about your engineering team's health
A deep dive into Pkl, Apple's configuration language that aims to replace JSON and YAML
Symmetric encryption algorithms like Advanced Encryption Standard (AES) are largely quantum-resistant already
Meet the innovators who laid the foundation for modern computing. Their contributions span decades, creating the tools and concepts developers use every day.
A deep dive into how pipeline operators can make your code more readable and maintainable
Understanding the security risks of localStorage and what to use instead for tokens, secrets, and user data
Grasp JavaScript's type coercion with practical examples and avoid common pitfalls
Master JavaScript logical operators with practical examples and best practices
Understanding CSS Object Model (CSSOM), browser security and practical alternatives for dynamic styling
A deep dive into how browsers parse and manipulate CSS, its impact on web performance, and why it matters
Understanding CSS Object Model (CSSOM), browser security and practical alternatives for dynamic styling
A developer's guide to tech interviews - from someone who sits on both sides of the table
Inside Anthropic's unique approach to preventing talent poaching and maintaining organizational equality
How I used Cloudflare Zaraz to offload third party scripts and improve my website performance.
A guide to catching and preventing credential leaks in your code using Secretlint
A tool that packages your code to easily share with LLM models.
Examining the Devaluation of Software Engineer Titles and Its Impact on Tech Industry Integrity
Learn how to automatically improve your Astro site's performance using astro-capo
Content Security Policy (CSP) acts like a shield against XSS attacks. These attacks are sneaky - they trick your browser into running malicious code by hiding it in content that seems trustworthy. CSP's job is to spot these tricks and shut them down, while also alerting you to any attempts it detects.
When Evan You announced VoidZero, I'll admit - I got excited. And a little nervous.
We're often focused on big innovations and breakthrough moments. But what if the real key to long-term success lies in the small, everyday actions we often overlook?
How to implement the Open-Dyslexic font to enhance readability for users with dyslexia
Silicon Valley has a reputation for youth worship. The 'move fast and break things' mentality often translates to a preference for younger, supposedly more adaptable workers.
Being a developer sometimes feels like being the goalkeeper in a soccer match. You make a hundred great saves, and no one bats an eye. But let one ball slip through, and suddenly you're the village idiot.
Learn the art of scope management to keep your projects fixed in time and cost
'We're not just a company, we're a family!' It's a nice sentiment, sure. But it's also a load of crap.
If you want to do great things, you'll need people with skills that complement yours. You can't do everything yourself. You need a team. You need an army. You need to build your army.
As a founder, you're always on the lookout for smart ways to grow your startup without burning through your limited resources. That's where the barnacle strategy comes in.
When faced with a challenge, I always step back to see the whole picture first. It's like pausing a complex strategy game to study the map. You might lose a few seconds of play time, but you gain a crucial understanding of the battlefield.
New research reveals a shocking loss of control in corporate IT environments
Explore the concept of micro frontends in web development, understand their benefits, and learn when this architectural approach is most effective for building scalable applications.
Exploring the key innovations and strategies that transformed Google into a global technology leader
Diving deep into the lesser-known factors that propelled Apple from a garage startup to a tech titan
How Jeff Bezos' 'Day 1' philosophy turned an online bookstore into a global powerhouse
Discover the biggest obstacle to success in tech and learn how to overcome it
How to turn your non-traditional background into your biggest asset
Users don't care how elegant your code is. They care if it solves their problem.
How to create essential documentation that actually gets read and used.
Create comprehensive, engaging documentation by adopting journalistic techniques for research and storytelling
Should you diversify your skills or specialize?
If you've ever wondered why your carefully planned software architecture ends up looking suspiciously like your org chart, you're not alone. Welcome to the world of Conway's Law.
How Cloudflare's new AI management tools could revolutionize content creation, potentially reshaping the internet landscape for both website owners and AI companies.
Just like a utility player on a sports team discovering their ideal position, internal mobility allows you to explore different areas of engineering and find your true passion.
Teams often neglect to create good documentation. Code gets delivered, but updating the docs is treated as a secondary task, easily postponed—until it’s too late.
Weeks of coding can save you hours of planning. It’s one of those sayings that’s been around forever, and for good reason—it’s a warning that still holds up today.
Advice on competing for great software engineers without name recognition
Once you're competent, everything changes. You stop second-guessing yourself. You stop panicking every time you encounter a new problem. And you start taking on bigger challenges with excitement rather than dread.
Letting go of difficult or harmful users can be the key to maintaining the health and growth of your product
It’s not just about getting the message across; it’s about doing so in a way that’s easy for others to follow. Good writing shows respect for your team and your work.
How Meta and other companies use the 'code wins arguments' mindset to turn ideas into reality
Engineering managers who stop writing code lose touch with their teams and become ineffective leaders
Automatically update your package.json dependencies one by one in chronological order, ensuring compatibility and reducing errors
Great products speak for themselves, without the need for massive marketing campaigns
Discover how FAANG companies like Amazon, Google, and Netflix reduce the hidden costs of meetings by embracing written communication and minimizing unnecessary gatherings.
How Amazon's emphasis on eliminating weasel words leads to more precise, actionable communication and better decision-making
A detailed look at the key changes and improvements in Express v5.0 and how to migrate your app
A deep dive into the strategies, mindset, and team culture that have made MrBeast one of the most successful creators on YouTube
How the experimental Speculation Rules API improves web performance by prefetching and prerendering future navigations
Why staying relevant in tech means constantly adapting to new technologies and trends
Why real company culture grows from the ground up, not top down.
Introducing The Crutch Effect
Using can improve your website's performance by reducing connection setup times to key external domains. Speed up the loading of critical resources like images, analytics, and embedded content for a smoother user experience.
How to save bandwidth and speed up your site by lazy-loading iframes
Technical debt isn't the monster under your bed, but it can become one if ignored too long.
Mental toughness gets developers through challenges like debugging, picking up new tools, and hitting tight deadlines. It’s about staying calm and pushing through when things get tough.
Google’s Gemini pulls summaries from websites and slaps them directly into the search results
Cyclomatic complexity is like counting how many ways a car can go. More options make it harder to drive because you have to make more decisions, which can lead to confusion.
The internet’s full of content, but most of it is becoming junk. I’m talking about the stuff generated by Large Language Models (LLMs). These AI tools are cranking out endless articles, and the quality? It's bad—really bad.
both setImmediate() and setTimeout() are used for scheduling tasks, but they work differently.
Unrealistic deadlines are more than just stressful—they set engineers up for failure
Closures are essential for creating functions that maintain state, without relying on global variables.
Clarity is key: being explicit makes your code more readable and maintainable.
AggregateError helps you handle multiple errors at once in JavaScript. This makes your code easier to manage and more reliable.
Testing can be tricky, especially when it comes to handling API calls.
The Power Play: Gemini Nano in Chrome
Early returns and intermediate variables make your code easier to reason about
It’s a small feature, but it can make a big difference.
Objective-C is, without a doubt, one of the ugliest programming languages out there
How component manages async dependencies and improves loading states in Vue apps
The 'with' statement is the only feature ever deprecated in JavaScript
List of useful Unix terminal commands to boost your productivity. Here are some of my favorites.
We don't need packages to handle basic JavaScript tasks
Identify and fix common JavaScript memory leaks (Node.js and Deno.js)
Automate security flows and ensure your team follows security best practices
A detailed comparison of Node.js, Bun.js, and Deno.js runtime performance
And it will be your downfall if you choose to ignore it
Tips for Keeping All Frontend Applications Secure
Performance is not a luxury; it's a necessity
Building a startup is an exhilarating journey, filled with highs and lows
Skeleton loading screens enhance user experience and make your app feel faster
Sharp is a high-performance package for resizing and formatting images
Streamline your development and deployment processes
Programming is a difficult skill to master and requires great perseverance to get good at. The grind can be too much at times — remember, if something is hard, it’s worth doing, as nothing good comes easy.
Expectations for entry-level programmers
Mermaid.js is a simple markdown-like script language for generating charts from text via JavaScript
A comprehensive roadmap to becoming a proficient web developer
Peaks.js is a client-side JavaScript component to display and interact with audio waveforms in the browser
Selectors are a powerful tool to optimize state selection and enhance performance in your React and Redux apps.
Here are my bets on the programming trends
Fetch data in React applications using the power of React Hooks
Hooks can save you time and improve the quality of your code
You can only become a great developer if you're willing to put effort into it
An overview of CSS-in-JS and its relevance in modern web development
We’re officially in the age of server-side rendered react apps
Webpack is another evolution in the JavaScript tooling ecosystem