The Tech;letter
A weekly newsletter for software engineers.
Archives | 104 issues
EC2 & IP, python 2 -> 3, programming advice, problem driven development
By Prajwal Haniya | December 21, 2024
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Core, process & thread - What is the difference?
By Prajwal Haniya | December 14, 2024
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Designing Data Products
By Prajwal Haniya | December 7, 2024
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args vs kwargs, async in PY ๐, dependency management ๐ฆ
By Prajwal Haniya | November 30, 2024
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How to Effortlessly make a Cloud Deployment of Multi-Language Project?
By Prajwal Haniya | November 23, 2024
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Love for Pandas
By Prajwal Haniya | November 16, 2024
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React โ | EJS โ
By Prajwal Haniya | November 9, 2024
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How to make your local app accessible to your network?
By Prajwal Haniya | November 2, 2024
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How to build a simple video trimming tool?
By Prajwal Haniya | October 26, 2024
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Guide to software licenses
By Prajwal Haniya | October 19, 2024
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How to build a simple recommendation engine?
By Prajwal Haniya | October 12, 2024
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Inside Databases: Exploring Indexing and Storage Mechanisms
By Prajwal Haniya | October 5, 2024
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How to create an executable file?
By Prajwal Haniya | September 28, 2024
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Tools to learn + improve productivity
By Prajwal Haniya | September 21, 2024
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k-means clustering
By Prajwal Haniya | September 14, 2024
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How react โ works?
By Prajwal Haniya | September 7, 2024
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How to design a โ๏ธ rate limiter?
By Prajwal Haniya | August 31, 2024
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cache โก, decorator ๐๏ธ, binary ๐งฎ, SQLite โ
By Prajwal Haniya | August 24, 2024
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pre & post install ๐ ๏ธ script, husky ๐, lifecycle scripts โป๏ธ
By Prajwal Haniya | August 17, 2024
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Toggle ๐น๏ธ, idempotent request ๐, npx ๐ฆ
By Prajwal Haniya | August 10, 2024
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Code ๐จโ๐ป, file reading in C++ ๐๏ธ, vimrc ๐
By Prajwal Haniya | August 3, 2024
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Django Views ๐, Linux notes ๐ง, Design of C++ ๐จ๐ปโ๐ป
By Prajwal Haniya | July 27, 2024
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Regex ๐ค, Django Architeture โ๏ธ, Lessons learned ๐, using exceljs ๐
By Prajwal Haniya | July 20, 2024
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Complex codebase ๐จโ๐ป, Python ๐ & Django, Personal tasks ๐
By Prajwal Haniya | July 13, 2024
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๐ Linux systems ๐ง, Resume ๐
By Prajwal Haniya | July 6, 2024
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Env variables โ๏ธ, AI ๐ค, Tools with no db ๐๏ธ, Productivity ๐
By Prajwal Haniya | June 29, 2024
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Monkey patch ๐, Conditional exports ๐ข, blocking EL ๐ฆน, import specifiers ๐ฅ, NodeNext ๐ข
By Prajwal Haniya | June 22, 2024
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Module bundlers ๐ฆ, declaration files ๐๏ธ, test cases ๐งช, DP hazard โข๏ธ, tsconfig.jsonโ๏ธ
By Prajwal Haniya | June 15, 2024
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Programming Language ๐ป, import ๐ข, spawn vs exec โ๏ธ, Linux ๐ง command in async โฑ๏ธ
By Prajwal Haniya | June 8, 2024
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Node path ๐ฃ๏ธ, POSIX System ๐ง, Load balancer โ, vector db ๐๏ธ
By Prajwal Haniya | June 1, 2024
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Compression Middleware โณ, Package Managers ๐ฆ, Django ๐ง๐ปโ๐ป, ML ๐ค
By Prajwal Haniya | May 25, 2024
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Shrortest Distnace ๐ฐ, clean code ๐จ๐ปโ๐ป, TCP ๐ง, ML ๐ค
By Prajwal Haniya | May 18, 2024
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Distributed Systems ๐ป, getters & setters ๐ ๏ธ, constructors ๐ท, | | โ๏ธ ??
By Prajwal Haniya | May 11, 2024
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GDPR ๐, Access Modifiers ๐, Access control ๐น๏ธ Design Patterns ๐งฉ , SDE for 2 years ๐ง๐ปโ๐ป
By Prajwal Haniya | May 4, 2024
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Underpromise ๐ค๐ป, Branded types ๐ท๏ธ, Negotiations ๐ต, CommonJS vs ES Modules
By Prajwal Haniya | April 27, 2024
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Requirements ๐จ๐ผโ๐ป, package-lock.json ๐ฆ, .js ๐ก vs .jsx ๐งฉ, documentation ๐
By Prajwal Haniya | April 20, 2024
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๐ฃ๏ธ Meetings ๐ฅ, Learning process ๐ง , nodemailer ๐ฉ, building features ๐จ๐ปโ๐ป
By Prajwal Haniya | April 13, 2024
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Autoincrement ๐, copy ๐, hoisting ๐, MySQL ๐ฌ Vs PostgreSQL ๐
By Prajwal Haniya | April 6, 2024
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Storage engines โ๏ธ, local storage vs session storage ๐ฆ, โtry/catch ๐คฒ, OpenSearch Mappings ๐บ๏ธ
By Prajwal Haniya | March 30, 2024
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Redux -> zustand ๐ป, software is messy ๐จ๐ปโ๐ป, ๐ in selection, landing page ๐ฏ
By Prajwal Haniya | March 23, 2024
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Sharding ๐๏ธ, Things college don't teach about SE ๐จ๐ปโ๐ป, AI Strategies ๐ค, 40 Years of Programming ๐
By Prajwal Haniya | March 16, 2024
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Color image to gray ๐ธ, virtual environment ๐จ๐ปโ๐ป, Detection VS Recognition ๐ค, rest VS spread operator ๐ช๏ธ
By Prajwal Haniya | March 9, 2024
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Cognitive load ๐ง , Health for SE ๐ง๐ปโโ๏ธ, child process ๐ค VS worker threads ๐ทโโ๏ธ
By Prajwal Haniya | March 2, 2024
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Clean Code ๐จ๐ปโ๐ป, parameter ๐ซ VS arguments ๐ท, for (each VS of) ๐, generics in programming ๐
By Prajwal Haniya | February 24, 2024
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Product Market Fit ๐ฌ๐ป๐ซ๐ป, SQL โ, Tell a different story ๐ฃ๏ธ
By Prajwal Haniya | February 18, 2024
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React components ๐งฉ, Working of browsers ๐, Extensions ๐, Search System ๐
By Prajwal Haniya | February 11, 2024
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programming types ๐จ๐ปโ๐ป, git repo origin ๐, system design overview โ
By Prajwal Haniya | February 4, 2024
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gidi CLI ๐ป, Scale from 0 to Million ๐
By Prajwal Haniya | January 28, 2024
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Problem-solving strategies ๐จ๐ปโ๐ป, event loop๐ย , npm ๐ yarn
By Prajwal Haniya | January 21, 2024
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Caching ๐๏ธ, ๐ฒShell Scripts โ๏ธ, Concurrency ๐, Parallelism โธ, Product Development ๐
By Prajwal Haniya | January 14, 2024
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Token Bucket Algorithm ๐ชฃ, Compare-PDFs ๐ โ๏ธ ๐
By Prajwal Haniya | January 7, 2024
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DSA ๐จ๐ปโ๐ป, Callback & Promises, Event Loop โณ, Database indexes โ
By Prajwal Haniya | December 31, 2023
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The complexity of food delivery โจ๏ธโ๐ตโ๐
By Prajwal Haniya | December 25, 2023
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Data Engineering๐ทโโ๏ธ, System Programming ๐จโ๐ป, date time ๐๏ธ, S3 ๐๏ธ
By Prajwal Haniya | December 16, 2023
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Concurrency ๐จ๐ปโ๐ป, Sorting โณ, Best practices๐, ML cases๐ค, Upgrading DB โ
By Prajwal Haniya | December 9, 2023
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Performing retries ๐ง๐ปโ๐ป, Update/Delete Cascade โ, struct, interface & concurrency in go
By Prajwal Haniya | November 25, 2023
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map ๐ set, try &catch, & bloom filter๐
By Prajwal Haniya | November 4, 2023
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A simple guide for working with dates in JavaScript
By Prajwal Haniya | October 29, 2023
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How authentication system work in web apps? | PART 2
By Prajwal Haniya | October 15, 2023
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How to Integrate C++ With Nodejs?
By Prajwal Haniya | September 27, 2023
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How authentication system works in web apps? | PART 1
By Prajwal Haniya | September 22, 2023
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How to implement scroll to bottom functionality in React?
By Prajwal Haniya | September 22, 2023
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How email works?
By Prajwal Haniya | August 15, 2023
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How to Build a Snake Game Using Javascript?
By Prajwal Haniya | August 12, 2023
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How to get the installed App Version in React Native?
By Prajwal Haniya | July 23, 2023
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How does the Mobile App Development process look?
By Prajwal Haniya | July 19, 2023
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How to get sim information from device using React-Native?
By Prajwal Haniya | July 9, 2023
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How to setup communication between Java and JavaScript in React Native?
By Prajwal Haniya | July 5, 2023
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How to Implement Background Task Functionality in React Native?
By Prajwal Haniya | June 29, 2023
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How to Implement Copy to Clipboard with multiselect list items?
By Prajwal Haniya | June 26, 2023
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How to Implement Pagination to Your Product?
By Prajwal Haniya | June 9, 2023
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How to Implement a Linked List?
By Prajwal Haniya | May 29, 2023
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What is Boyre-Moore Voting Algorithm?
By Prajwal Haniya | May 26, 2023
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How to solve these 3 Tricky array problems?
By Prajwal Haniya | May 25, 2023
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How to Merge Two Sorted Arrays?
By Prajwal Haniya | May 24, 2023
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How to implement a binary tree? | Part 2
By Prajwal Haniya | May 23, 2023
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Tree Basics | Part 1
By Prajwal Haniya | May 22, 2023
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How to Implement DFS? | Part 3
By Prajwal Haniya | May 21, 2023
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How to Implement BFS? | Part 2
By Prajwal Haniya | May 20, 2023
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Graph Traversal: A Deep Dive | Part 1
By Prajwal Haniya | May 19, 2023
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The ABCs of Time Complexities
By Prajwal Haniya | May 18, 2023
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What are some of the must know concepts?
By Prajwal Haniya | May 17, 2023
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The Series | Daily Structures
By Prajwal Haniya | May 16, 2023
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What Is an Event Loop?
By Prajwal Haniya | May 9, 2023
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How to Create Beautiful HTML Outputs With Nodejs?
By Prajwal Haniya | April 29, 2023
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What Are Some Key Concepts That Every Backend Engineer Should Know?
By Prajwal Haniya | April 20, 2023
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How to Connect Nodejs With Postgresql Along With Sequelize ORM?
By Prajwal Haniya | April 9, 2023
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How to Build Your Own Hashmap in Javascript? | A Beginners Guide
By Prajwal Haniya | April 3, 2023
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How to Build a Suffix Tree in Javascript? A step by step guide
By Prajwal Haniya | March 30, 2023
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What is Trie and How to implement it?
By Prajwal Haniya | March 28, 2023
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What Are Some of the Important Array Problems?
By Prajwal Haniya | March 25, 2023
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How to Build a Url Shortener?
By Prajwal Haniya | March 14, 2023
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How Node.js Work?
By Prajwal Haniya | March 7, 2023
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What are React Lifecycle Methods?
By Prajwal Haniya | February 28, 2023
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How to Upload a File in React and Nodejs?
By Prajwal Haniya | February 18, 2023
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How to publish your own npm package?
By Prajwal Haniya | February 7, 2023
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What is async & await? How do they work?
By Prajwal Haniya | January 31, 2023
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What is the difference between a SPAs and a MPAs?
By Prajwal Haniya | January 22, 2023
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A simple introduction to TypeScript
By Prajwal Haniya | January 14, 2023
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Why to learn TypeScript?
By Prajwal Haniya | January 7, 2023
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What is useContext and how to use it in react?
By Prajwal Haniya | December 29, 2022
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CRUD operations using firebase
By Prajwal Haniya | December 24, 2022
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What is call, apply & bind in JavaScript?
By Prajwal Haniya | December 17, 2022
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How to import images dynamically in react?
By Prajwal Haniya | December 10, 2022
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