A developer who likes to hack things up. Dedicated learner, mentor and technical blogger - Oğuzhan Olguncuhttps://ogzhanolguncu.com/https://ogzhanolguncu.com/blog/arena-allocator-in-go/https://ogzhanolguncu.com/blog/arena-allocator-in-go/Learn how memory allocation works by building an arena allocator in Go from scratch. Covers memory addresses, alignment, padding math, and unsafe pointer reads.Sun, 19 Apr 2026 00:00:00 GMThttps://ogzhanolguncu.com/blog/implementing-distributed-counter-part-2/https://ogzhanolguncu.com/blog/implementing-distributed-counter-part-2/Learn how to implement TCP networking for a distributed counter in Go. This part covers TCP transport implementation with proper framing, peer management refactoring, and shows a working distributed counter cluster communicating over an actual network.Sun, 11 May 2025 00:00:00 GMThttps://ogzhanolguncu.com/blog/implementing-distributed-counter-part-1/https://ogzhanolguncu.com/blog/implementing-distributed-counter-part-1/Learn how to implement the core Node component of a distributed counter in Go. This part details the Node structure, defines the communication protocol, integrates the CRDT, and implements synchronization tested via in-memory transport.Mon, 14 Apr 2025 00:00:00 GMThttps://ogzhanolguncu.com/blog/implementing-distributed-counter-part-0/https://ogzhanolguncu.com/blog/implementing-distributed-counter-part-0/Learn how to build a distributed counter from scratch using Go and CRDT (Conflict-free Replicated Data Types).Mon, 07 Apr 2025 00:00:00 GMThttps://ogzhanolguncu.com/blog/write-your-own-json-parser/https://ogzhanolguncu.com/blog/write-your-own-json-parser/Let's write our very own JSON Parser from scratchWed, 19 Jul 2023 00:00:00 GMThttps://ogzhanolguncu.com/blog/rust-like-error-handling-with-neverthrow/https://ogzhanolguncu.com/blog/rust-like-error-handling-with-neverthrow/Enhance robust JavaScript coding with Neverthrow. Utilize Rust-like error handling for exception resilience and reliable code.Sun, 21 May 2023 00:00:00 GMThttps://ogzhanolguncu.com/blog/mythical-man-month/https://ogzhanolguncu.com/blog/mythical-man-month/Learn from Fred Brooks' classic on software project management, productivity, and team dynamics. Boost your skills with key takeaways for maximum efficiencySun, 09 Apr 2023 00:00:00 GMThttps://ogzhanolguncu.com/blog/sign-urls-node-typescript-improved-web-app-security-guide-code-samples/https://ogzhanolguncu.com/blog/sign-urls-node-typescript-improved-web-app-security-guide-code-samples/Learn how to sign URLs using Node and Typescript for improved security and reliability of your web apps. Step-by-step guide with code samples.Sun, 26 Mar 2023 00:00:00 GMThttps://ogzhanolguncu.com/blog/als-with-examples/https://ogzhanolguncu.com/blog/als-with-examples/There is way to persist some states within NodeJS without passing parameters around. Today we will discover how to use Async Local Storage with Typescript within NextJS.Sat, 21 Jan 2023 00:00:00 GMThttps://ogzhanolguncu.com/blog/recursion-made-easy/https://ogzhanolguncu.com/blog/recursion-made-easy/We`ll be learning recursion with Javascript, but without Fibonacci. We`ll also explore Haversine formula to calculate distance between coordinates.Sun, 20 Nov 2022 00:00:00 GMThttps://ogzhanolguncu.com/blog/tidy-serverside-props/https://ogzhanolguncu.com/blog/tidy-serverside-props/Using higher order functions to compose getServerSideProps to achieve cleaner and more organized code.Sun, 16 Oct 2022 00:00:00 GMThttps://ogzhanolguncu.com/blog/react-ssr-ssg-from-scratch/https://ogzhanolguncu.com/blog/react-ssr-ssg-from-scratch/Build your own server side rendering with Vite, React and Typescript. SSG Included.Thu, 04 Aug 2022 00:00:00 GMThttps://ogzhanolguncu.com/blog/mutable-imports/https://ogzhanolguncu.com/blog/mutable-imports/Do you know you can actually mutate an imported object in JS? Today, we will see how to mutate and avoid mutation for imported objects.Sun, 03 Jul 2022 00:00:00 GMThttps://ogzhanolguncu.com/blog/up-and-running-with-jotai/https://ogzhanolguncu.com/blog/up-and-running-with-jotai/Simple, elegant state management with Jotai and type-safety with Typescript. Today we will learn how to use them together.Sat, 18 Jun 2022 00:00:00 GMThttps://ogzhanolguncu.com/blog/monorepo-with-turborepo/https://ogzhanolguncu.com/blog/monorepo-with-turborepo/Setting up monorepo with Turborepo to manage all your React, NextJS and Express projects.Sun, 15 May 2022 00:00:00 GMThttps://ogzhanolguncu.com/blog/auth-with-clerk/https://ogzhanolguncu.com/blog/auth-with-clerk/Adding auth to NextJS has never been so easy thanks to ClerkTue, 10 May 2022 00:00:00 GMThttps://ogzhanolguncu.com/blog/how-does-prevstate-works-under-the-hood/https://ogzhanolguncu.com/blog/how-does-prevstate-works-under-the-hood/We'll take a look at React to see how prevState works under the hood to access the latest state.Mon, 21 Feb 2022 00:00:00 GMThttps://ogzhanolguncu.com/blog/event-propagation-in-react/https://ogzhanolguncu.com/blog/event-propagation-in-react/A deep dive into event propagation in React through examples.Thu, 17 Feb 2022 00:00:00 GMThttps://ogzhanolguncu.com/blog/micro-frontends-with-module-federation/https://ogzhanolguncu.com/blog/micro-frontends-with-module-federation/In this article we will set up Micro Frontends with Module Federation, React and TypescriptMon, 31 Jan 2022 00:00:00 GMThttps://ogzhanolguncu.com/blog/mystical-world-of-solidity/https://ogzhanolguncu.com/blog/mystical-world-of-solidity/Have you ever wondered how to interact with Ethereum through Smart Contracts? Solidity is here to help you with the help of Remix.Sun, 26 Dec 2021 00:00:00 GMThttps://ogzhanolguncu.com/blog/transducers-in-javascript/https://ogzhanolguncu.com/blog/transducers-in-javascript/In this article we`ll deep dive into transducers to optimize big data sets. Learn how to optimize compositions using Ramda and Javascript.Fri, 03 Dec 2021 00:00:00 GMThttps://ogzhanolguncu.com/blog/react-vs-solid/https://ogzhanolguncu.com/blog/react-vs-solid/In this article, we will compare SolidJS and React. Benchmark some metrics and assess the pros and cons of both libraries.Mon, 11 Oct 2021 00:00:00 GMThttps://ogzhanolguncu.com/blog/function-composition-javascript/https://ogzhanolguncu.com/blog/function-composition-javascript/In this article we`ll deep dive into function composition, pipes, currying and partial applications with examples from real world.Sun, 03 Oct 2021 00:00:00 GMThttps://ogzhanolguncu.com/blog/handling-loggedin-user-firebase-react-app/https://ogzhanolguncu.com/blog/handling-loggedin-user-firebase-react-app/Best way to handle logged-in users in the Firebase/React app is to use custom hook and a context api built with Typescript.Sun, 04 Apr 2021 00:00:00 GMThttps://ogzhanolguncu.com/blog/intro-to-custom-hooks/https://ogzhanolguncu.com/blog/intro-to-custom-hooks/In this article we will learn how to setup our first custom hook. We will convert axios into re-usable hook with typescript and generics.Thu, 18 Mar 2021 00:00:00 GMThttps://ogzhanolguncu.com/blog/must-know-types-in-typescript/https://ogzhanolguncu.com/blog/must-know-types-in-typescript/In this article we will talk about types we use in our everyday lives to ease development process. And, discover some tricks that can be used with Typescript types.Sat, 06 Mar 2021 00:00:00 GMThttps://ogzhanolguncu.com/blog/testing-react-redux-toolkit-with-typescript/https://ogzhanolguncu.com/blog/testing-react-redux-toolkit-with-typescript/In this article we will test our React/Redux Toolkit app. Testing specifically slices and component that connected to react with Typescript and React Router.Sun, 28 Feb 2021 00:00:00 GMThttps://ogzhanolguncu.com/blog/react-redux-toolkit-with-typescript/https://ogzhanolguncu.com/blog/react-redux-toolkit-with-typescript/All React apps need a state management library such as Redux Toolkit and type-safety with Typescript. Today we will learn how to use them together.Thu, 25 Feb 2021 00:00:00 GMThttps://ogzhanolguncu.com/blog/dealing-with-binaries-in-javascript/https://ogzhanolguncu.com/blog/dealing-with-binaries-in-javascript/Dealing with binaries in Javascript requires the knowledge of bitwise operators, bits, bytes, hexadeciamls. Those operators often come in handy when manipulating bits and bytes.Sun, 07 Feb 2021 00:00:00 GMThttps://ogzhanolguncu.com/blog/speeding-up-your-website/https://ogzhanolguncu.com/blog/speeding-up-your-website/Techniques to speed up your website and improve the user experience that specifically aiming to React and Next.js sites. We'll discuss things like bundles, fonts, unicode-ranges, webpack.Sun, 31 Jan 2021 00:00:00 GMThttps://ogzhanolguncu.com/blog/build-a-custom-react-router-from-scratch/https://ogzhanolguncu.com/blog/build-a-custom-react-router-from-scratch/Have you ever wondered how react router works under the hood? If that's the case best way to explore is to build a custom react router from scratch.Sat, 16 Jan 2021 00:00:00 GMThttps://ogzhanolguncu.com/blog/debounce-and-throttling-comprehensive-guide/https://ogzhanolguncu.com/blog/debounce-and-throttling-comprehensive-guide/Every web developer must aware of Debounce and Throttle to maximize client performance.Sun, 03 Jan 2021 00:00:00 GMThttps://ogzhanolguncu.com/blog/how-to-setup-a-bulletproof-nextjs-project-with-typescript-eslint-prettier-babel-and-husky/https://ogzhanolguncu.com/blog/how-to-setup-a-bulletproof-nextjs-project-with-typescript-eslint-prettier-babel-and-husky/In order to make your Next.js project robust and maintainable, you should be using ESLint, Typescript, Husky and Prettier.Sun, 06 Dec 2020 00:00:00 GMThttps://ogzhanolguncu.com/blog/testing-with-react-testing-library-typescript-and-axios/https://ogzhanolguncu.com/blog/testing-with-react-testing-library-typescript-and-axios/Testing our UI components and API requests, using React Testing Library, Jest and Ts-Jest. And, of course, we`ll be using Typescript. Axios, RTL, TypescriptWed, 18 Nov 2020 00:00:00 GMThttps://ogzhanolguncu.com/blog/frequently-asked-react-and-frontend-interview-questions/https://ogzhanolguncu.com/blog/frequently-asked-react-and-frontend-interview-questions/Today, we are going to discuss most frequently asked interview question that I faced during interviews.Mon, 02 Nov 2020 00:00:00 GMThttps://ogzhanolguncu.com/blog/binary-search-in-javascript/https://ogzhanolguncu.com/blog/binary-search-in-javascript/Learn how to perform a binary search in Javascript and talk a little about O notation.Fri, 23 Oct 2020 00:00:00 GMThttps://ogzhanolguncu.com/blog/hash-tables-explained-in-javascript/https://ogzhanolguncu.com/blog/hash-tables-explained-in-javascript/Hash tables are incredibly powerful and versatile beasts. They let you store your data in a key-valueFri, 23 Oct 2020 00:00:00 GMThttps://ogzhanolguncu.com/blog/quicksort-in-javascript/https://ogzhanolguncu.com/blog/quicksort-in-javascript/Have you ever wondered why Quicksort called quick? Because it's one of the fastest sorting algorithms out there. Tutorial in Javascript/Typescript.Fri, 23 Oct 2020 00:00:00 GMThttps://ogzhanolguncu.com/blog/selection-sort-in-javascript/https://ogzhanolguncu.com/blog/selection-sort-in-javascript/Today, we are going to discover how Selection Sort works and discuss its complexity using Big O Notat... Tagged with javascript, datastructures, computerscience, typescript.Fri, 23 Oct 2020 00:00:00 GMThttps://ogzhanolguncu.com/blog/using-async-await-the-right-way/https://ogzhanolguncu.com/blog/using-async-await-the-right-way/Learn how to use async/await right wayFri, 23 Oct 2020 00:00:00 GMThttps://ogzhanolguncu.com/blog/using-curry-the-functional-way/https://ogzhanolguncu.com/blog/using-curry-the-functional-way/Currying is actually a process of linking functions together to reduce the number of arguments they take by utilizing lambda calculus.javascript, typescript, tutorial, functional.Fri, 23 Oct 2020 00:00:00 GMT