🧪 Testing Tip: The "AAA" Pattern

Writing tests shouldn't feel like a chore. If your tests are messy, you won't write them. Use the Arrange-Act-Assert structure.

❌ The Spaghetti Test:

Mixing variable setup, function calls, and expectations in one giant pile of code.

✅ The AAA Structure:

test('should calculate total', () => {
// 1. Arrange (Setup)
const price = 10;
const quantity = 2;

// 2. Act (Execute)
const result = calculateTotal(price, quantity);

// 3. Assert (Verify)
expect(result).toBe(20);
});

The takeaway: This pattern makes your tests readable at a glance. Anyone can look at it and see exactly what is being tested and what the expected outcome is.

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9 newsletters that will help fast-track

your software engineering career:

1 System design

↳ https://newsletter.systemdesign.one/join

2 Product for engineers

↳ http://newsletter.posthog.com/welcome/?r=28q5ao

3 Engineering leadership

↳ http://newsletter.eng-leadership.com/welcome/?r=28q5ao

4 Daily Dev Tips

↳ https://dailytips.dev/

5 Software design & architecture

↳ https://newsletter.systemdesignclassroom.com

6 Test-driven development

↳ https://craftbettersoftware.com

7 Weekly tech reads

↳ https://www.hungryminds.dev/

8 Software design and frontend development

↳ https://thetshaped.dev/

9 Engineering career growth strategies

↳ https://strategizeyourcareer.com/?r=28q5ao

Each newsletter on this list taught me something.

🖋 Naming: Avoid Encoding Types in Names

Your IDE already knows the data type. Don't waste space telling the human what they can already see.

❌ The Hungarian Notation:
const strName = "Alex";
const arrUsers = ["Alex", "Sam"];

✅ Descriptive Context:
const userName = "Alex";
const activeUsers = ["Alex", "Sam"];

The takeaway: Focus on what the variable contains or why it exists, not its technical type. activeUsers tells a story; arrUsers just tells me it's an array.

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📝 The "Explain Like I'm Five" Commenting Style

Code tells the computer how to do something, but comments should tell a human why you chose that specific path.

The Concept: Avoid comments that just repeat what the code says (e.g., "adding 1 to x"). Instead, explain the business logic or the "why" behind a non-obvious decision.

The Why: Six months from now, you won't remember why you used a specific workaround or why a certain edge case was handled that way.

The Takeaway: Good code is readable, but great code is contextual. Write comments for your future, caffeinated self who has forgotten everything about this project.

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🎓 Available Courses:

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Learn the fundamentals of Generative AI, AI agents, and real world applications.
🔗 https://learn.microsoft.com/training/modules/get-started-ai-fundamentals?wt.mc_id=studentamb_507629

2️⃣ Introduction to AI Concepts
Understand core AI concepts, machine learning basics, and practical use cases.
🔗https://learn.microsoft.com/training/modules/explore-generative-ai?wt.mc_id=studentamb_507629

3️⃣ Build a generative AI chat app – Build chat apps with Azure AI Foundry
👉 https://learn.microsoft.com/credentials/applied-skills/build-a-generative-ai-chat-app?wt.mc_id=studentamb_507629

4️⃣ Create an AI agent – Learn to create AI Agents using Microsoft tools
👉 https://learn.microsoft.com/credentials/applied-skills/create-an-ai-agent?wt.mc_id=studentamb_507629

5️⃣ Implement knowledge mining – Azure AI Search lab
👉 https://learn.microsoft.com/credentials/applied-skills/implement-knowledge-mining-with-azure-ai-search/?wt.mc_id=studentamb_507629

6️⃣ Enhance agents with autonomous capabilities – Add autonomous behavior to AI Agents
👉 https://learn.microsoft.com/credentials/applied-skills/enhance-agents-with-autonomous-capabilities?wt.mc_id=studentamb_507629

7️⃣ AI Skills Navigator – Explore and find personalised AI skills here:
👉 https://aiskillsnavigator.microsoft.com?wt.mc_id=studentamb_507629

8️⃣ Develop a Voice Live Agent
Build & deploy AI-powered voice agents.
🔗 https://learn.microsoft.com/training/modules/develop-voice-live-agent?wt.mc_id=studentamb_507629

9️⃣ AI Builder with Power Automate
Automate workflows using AI — no heavy coding required.
🔗 https://learn.microsoft.com/training/modules/ai-builder-power-automate?wt.mc_id=studentamb_507629

🔟 Explore Generative AI
Learn Generative AI fundamentals & real-world applications.
🔗 https://learn.microsoft.com/training/modules/explore-generative-ai?wt.mc_id=studentamb_507629

Get Started with Power BI
Master data visualization & business intelligence.
🔗 https://learn.microsoft.com/training/modules/get-started-with-power-bi?wt.mc_id=studentamb_507629


💰 Total Value: $499 - Available FREE for a limited time!
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Don’t miss this chance to upgrade your AI skills! 🔥

Sql notes

Something unexpected happened in AI last week that nobody is talking about. Meta built an AI that predicts how your brain reacts to what you see and hear.

Not generating. Not writing.
Predicting your brain.

Feed it a video clip, it tells you exactly which parts of your brain would light up. Trained on 500+ hours of fMRI scans from 700+ people.

Called TRIBE v2, and they just released it free for anyone to try.

Try the demo → go.meta.me/tribe2

AI stopped just creating things last week. it started understanding how we experience them.

That's a very different game.