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EJEva J Patelevapatel123.hashnode.devJul 22 · 4 min read

Code Cheap, Pay Double: The Real Cost of Shortcuts (Tech Debts)

A few months ago, my team and I were finishing up an app for a local coding competition. With only 48 hours left before the submission deadline, we needed to add one final feature: a simple button tha

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BSBikki Singhcodepractice-blogs.hashnode.devJun 23 · 9 min read

Top 10 PHP Bugs Every Beginner Makes (And How to Fix Them)

You write what looks like perfectly reasonable PHP. You hit refresh. Blank white screen — no error, no warning, no clue what went wrong. This is PHP's most frustrating feature for beginners: it fails

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AMAlex Mateoalexmateo.hashnode.devJun 8 · 9 min read

How to Derive Any DP Table From Scratch (Without Memorizing Solutions)

Most DP guides teach you solutions. This one teaches you derivation. There is a meaningful difference between the two. When you memorize a solution, you can reproduce it on the exact problem you pract

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SSShreya Shreeshreyashree.hashnode.devMay 24 · 13 min read

🏆 This Type of Question Was Asked in TCS NQT Advanced Coding - Can You Solve It?

🧾 The Problem Statement A teacher wants to analyze the performance of their class. You are given N student marks. Your task is to: Remove any invalid marks (negative values or anything above 100) C

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SSSubransu Sekhar Maharanawebfundamentals.hashnode.devMay 8 · 6 min read

Setting Up Your First Node.js Application Step-by-Step

Introduction If you want to start backend development with JavaScript, the first thing you need is Node.js. Node.js allows JavaScript to run outside the browser. Instead of executing code in Chrome or

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PMPrajwal Mglitch-guy0.hashnode.devApr 20 · 8 min read

Flattening Nested Arrays: The Complete Guide

Nested arrays are everywhere in real-world JavaScript applications—from deeply structured API responses to hierarchical data trees. Whether you're working with comment threads, file systems, or organi

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SKShubham Kumar Singhblog.realdev.clubApr 7 · 3 min read

Sort 0, 1, 2 (Dutch National Flag Algorithm)

When I first solved the 0s and 1s segregation problem, it felt simple. If you haven’t seen it, you can check it here:🔗 https://shubhamsinghbundela.hashnode.dev/segregate-0s-and-1s-in-place-sorting

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HPHrishikesh Poojarycodetyper.hashnode.devApr 3 · 5 min read

We built a typing test for developers — here's exactly how it works

There is a frustration every developer knows. You have the solution in your head. The logic is clear. And then your fingers just don't keep up. You mistype a bracket, fumble an underscore, break your

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MKMoussa Kalam AMZATblog.moussaamzat.devMar 17 · 10 min read

10 Exercises to Master Python Decorators (With Solutions)

You've read the theory. You understood how decorators work. Now it's time to prove to yourself. These exercises are ordered deliberately. The first few build the foundation skills, and each one adds a

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LALamri Abdellah Ramdaneservbaymac.hashnode.devMar 2 · 6 min read

9 Python Libraries That Reduced a One-Month AI Development Cycle to Just 3 Days

It's no secret that Python reigns supreme in the AI space. But to make an application capable of calling both OpenAI and Claude simultaneously, you usually have to write thick wrapper layers. I even u

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#coding-challenge

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Trending tags this week

Code Cheap, Pay Double: The Real Cost of Shortcuts (Tech Debts)

Top 10 PHP Bugs Every Beginner Makes (And How to Fix Them)

How to Derive Any DP Table From Scratch (Without Memorizing Solutions)

🏆 This Type of Question Was Asked in TCS NQT Advanced Coding - Can You Solve It?

Setting Up Your First Node.js Application Step-by-Step

Flattening Nested Arrays: The Complete Guide

Sort 0, 1, 2 (Dutch National Flag Algorithm)

We built a typing test for developers — here's exactly how it works

10 Exercises to Master Python Decorators (With Solutions)

9 Python Libraries That Reduced a One-Month AI Development Cycle to Just 3 Days