🚀 Mastering SOLID Principles #3
Open/Closed Principle (OCP): Extending Software Without Breaking It
Learn how to design software that grows through extension rather than constant modification.
📖 linkedin.com/pulse/mastering…
#SOLID #CleanCode #SoftwareEngineering #CodeWithIshwar
1
5
After 12 years in software engineering, here's what matters most:
❌ Chasing every new framework
✅ Strong fundamentals
✅ Consistency
✅ Communication
✅ Public learning
✅ Adaptability
Tech changes.
Learning how to learn doesn't.
Comment Your Thought ? 👇
#CodeWithIshwar
1
3
🤖 AI is probably in a hype bubble.
💡 AI is probably also a technological revolution.
Both can be true at the same time.
Many AI companies may disappear.
AI itself isn't going anywhere.
What do you think?
#AI #Tech #Innovation #LLM #CodeWithIshwar #SoftwareEngineering
1
13
This week's learning:
The internet has no shortage of tutorials.
The shortage is people willing to struggle through building something from scratch.
Agree or disagree?
#FridayLearning #CodeWithIshwar #BuildInPublic #Programming #SoftwareEngineering 🚀
4
22
Redis looks simple — just key-value storage.
But underneath, it’s powered by smart data structures: Strings, Hashes, Lists, Sets, Sorted Sets.
That’s why Redis isn’t just fast — it’s a data structure engine for real-time systems 🚀
#Redis #DSA #SystemDesign #CodeWithIshwar
2
10
🌐 Type a URL → DNS kicks in 🌐
Cache → Resolver → Root → TLD → IP
⚡ Cache = fast
🐢 No cache = slow
#dns #systemdesign #systemdesign #dns #backend #programming #codewithishwar
2
14
In AI, “nothing” doesn’t exist.
Even silence is stored as data.
- codewithishwar
#AI #MachineLearning #Programming #Developers #Tech
2
7
I almost overcomplicated this problem. 😅
LeetCode 3546 — Equal Sum Grid Partition
At first: “Try all cuts” ❌
But the trick is simple:
If total sum is even → find a prefix = total / 2
That’s it.
No brute force. Just clarity.
#leetcode #dsa #java #programming #codewithishwar
2
6
Solved Two Sum today.
Brute force → O(n²)
HashMap → O(n)
Many DSA problems aren’t about coding.
They’re about recognizing the right data structure.
— CodeWithIshwar
#CodeWithIshwar #DSA #LeetCode #Programming
2
12
AI can generate code.
The real engineering skill now is:
asking better questions and validating the answers.
Prompting is easy.
Judgment is hard.
- CodeWithIshwar
#AI #SoftwareEngineering #Developers #CodeWithIshwar
2
11
Seniority is earned in incidents, not interviews.
DSA tests logic.
Production tests judgment.
Anyone can explain architecture.
Few can handle failure calmly.
That’s the difference.
- CodeWithIshwar
#SoftwareEngineering #Production #SystemDesign #CodeWithIshwar
2
13
Syntax is becoming automated. Judgment is becoming valuable.
- CodeWithIshwar
#SoftwareEngineering #AI #Tech #Developers #CodeWithIshwar
3
11
Management isn’t a promotion.
It’s a different career.
Some scale systems.
Some scale people.
Both matter.
- CodeWithIshwar
#CodeWithIshwar #Leadership
2
7
You don’t need 10 hours of coding.
You need 90 focused minutes.
Daily.
Consistency builds engineers.
Not intensity.
— CodeWithIshwar
#CodeWithIshwar #DeveloperMindset
2
4
61
Brute force isn’t bad.
Premature optimization is.
First solve clearly.
Then optimize if needed.
That’s engineering maturity.
- CodeWithIshwar
#DSA
#CodingInterview
#SoftwareEngineering
#CodeWithIshwar
3
18
DP is powerful.
But unnecessary DP is overengineering.
First simplify.
Then optimize.
That’s real DSA maturity.
- CodeWithIshwar
#DSA
#CodingInterview
#ReactJS
#CodeWithIshwar
2
12
DSA gets easier
when problems start looking familiar.
Recognize the pattern first.
Code comes later.
- CodeWithIshwar
#CodeWithIshwar #DSA
2
15
If your DSA solution feels complex,
you probably skipped one step: understanding the pattern.
Prefix/suffix?
Two pointers?
Recursion memo?
Greedy vs DP?
Patterns reduce thinking cost.
That’s the real power of DSA.
- CodeWithIshwar #SoftwareEngineering #CodeWithIshwar
2
10
Most problems feel hard
because too many decisions
are being made at once.
- CodeWithIshwar
#SoftwareEngineering #CodeWithIshwar
2
10
A solution is usually clear.
Maintaining it for two years is not.
- CodeWithIshwar
#SoftwareEngineering #CodeWithIshwar
3
13