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Irene Smolchenko

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JavaScript in Plain English

Understanding Nullish, Non-Nullish, and Asserting Non-Nullish Values in TypeScript

Comprehensive guide to handling null & undefined values in TypeScript, leveraging AssertNonNullish & Nullish Coalescing for type safety.

5 min readJun 30, 2023

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Illustration of the nullish variables concept, represented by a clear round marble resting on a brown rock.

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Irene Smolchenko
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Level Up Coding

Understanding the Differences between URL, URI and URN

Distinguishing the Most Common Types of Web Identifiers

7 min readJun 30, 2023

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Understanding the Differences between URL, URI and URN

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Irene Smolchenko
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Level Up Coding

TypeScript Decorators: A Comprehensive Guide

Unlocking the Potential and Flexibility of TypeScript Decorators with Simple, Illustrative Examples for a Solid Foundation

8 min readJun 21, 2023

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A wall covered in hand-drawn patterned paintings with a table nearby holding paintbrushes in cups. It hints at a creative and decorative setting.

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ITNEXT

Mastering Declaration Files: The Key to TypeScript’s Type Magic

Unlock the Potential of Declaration Files to Enhance Your JavaScript Development

8 min readJun 14, 2023

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A chessboard with a pawn and a king, symbolizing the journey and evolution towards mastery in a particular skill or domain.

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ITNEXT

Unlocking the Power of TypeScript’s Compiler Configuration

Diving into the Must-Know Specifics of tsconfig.json

8 min readJun 7, 2023

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Colorful configuration wheels spinning in harmony, representing the diverse and interconnected aspects of TypeScript’s compiler configuration

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Irene Smolchenko
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JavaScript in Plain English

Asynchronous JavaScript — Callbacks, Promises, Async Await

Everything you need to know from Callbacks to Advanced Promise Handling, Async Await, Quizzes and Solutions.

12 min readMar 1, 2024

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A man’s hand holding a card that says ‘Adventure Awaits’ against the backdrop of a waterfall.

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Irene Smolchenko
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ITNEXT

Javascript Runtime: JS Engine, Event Loop, Call Stack, Execution Contexts, Heap, and Queues

A Comprehensive Explanation of Fundamental Concepts in JavaScript Code Execution

10 min readAug 2, 2023

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A display of a clean red car engine.

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Irene Smolchenko
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ITNEXT

Understanding the Functional Programming Paradigm

Immutability, Pure Functions, and Function Compositions

6 min readJul 30, 2023

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Understanding the Functional Programming Paradigm

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Irene Smolchenko
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Women in Technology

The Power of SEO: Unlocking the Potential of Online Visibility

Maximizing Online Presence and Reach with Crawlers and SEO

6 min readJul 6, 2023

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A board of SEO relevant keywords with a magnifying glass in the middle of the illustration.

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Irene Smolchenko
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ITNEXT

Decoding Big O Notation Time and Space Complexities in JavaScript

Essential Performance Complexities Every Programmer Should Know, Plus Interview-Style Quizzes

11 min readJun 25, 2023

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Developer in hoodie sitting in armchair with laptop on huge clock carpet, symbolizing time and space.

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Irene Smolchenko

Irene Smolchenko

🍴🛌🏻 👩🏻‍💻 🔁 Front End Web Developer | Troubleshooter | In-depth Tech Writer | 🦉📚 Duolingo Streak Master | ⚛️ React | 🗣️🤝 Interviews Prep

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