Pankaj Tanwar - CS Engineer, writer & creator.
UNLINK vs DEL - A deep dive into how it works internally in Redis 🪢
Building a tiny load balancing service using PID Controllers 🚘
I turned my 10 year old tablet into a digital photo frame, displaying google photos album. 🌴
I built a gnome shell extension to show how much my day, month, year and life has passed.
Top 3 USELESS JavaScript interview questions 🤮
How redis expires keys? A dive into how TTL works internally in Redis. 🌊
I quit my job, built 8 freelance projects at a time, and made good money but… lost happiness💡
I built a file upload service without any external library, just pure JavaScript 🤖
How I built a real-time blog view counter with NextJs and Firebase 👨💻
Pagination with Cassandra - let’s deal with paging large queries in python 🐍
Counting my contributions to a git repo 💻
I resigned.... what's next? 🚀
A directory is not a folder.
Prevent duplicate cron job running.
3% Formula to invest in yourself.
What is latency? Let’s deep dive & understand possible ways to optimise it.
Introducing Bestresources.co - Share & explore personal resources at one place!
What is the sorting algorithm behind ORDER BY query in MySQL?
Have you ever thought, how ‘nodemon’ works internally? Let’s build our own ‘nodemon’ in under 10 minutes!
Do you know 0.1 + 0.2 ≠ 0.3 in JavaScript? Here is why!
The basics you need to know about Kafka [Graphic Explanation Ahead 🖥️]
How to implement WhatsApp like End-to-end encryption?
Interesting analogy to understand synchronous, callback, and async-await (promises) approach like I am 10 Y Kid 🧒
How does Github store millions of repo and billions of files?
How Instagram computes real-time trending hashtags ?
System Design - How to design Google Drive / Dropbox (a cloud file storage service)?
How database indexing actually works internally?
Proxy vs Reverse Proxy - using a real life example!
System Design - Is client side load balancing a good idea?
Scalability Challenge - How to remove duplicates in a large data set (~100M) ?
How Twitter stores 500M tweets a day?
Generating unique IDs in a distributed environment at high scale.
My journey - from python scripts to 20+ freelance full stack projects.
Convert number to Indian format number using Javascript.
Advantages & disadvantages of declaring JavaScript functions inside objects.
Explain Microservices like I am 10.
Possible ways to iterate a string in JavaScript.