Coding & Skills
391 articles in this topic
JavaScript Interview Questions for Freshers 2026: Core Concepts, the DOM and ES6+
Prepare for JavaScript fresher interviews by reasoning through scope, closures, this, async execution, ES6+ and DOM behaviour. Includes the classic loop-closure trace.
Updated 29 Jul 20266 min readJava
Python Functions Deep Dive: *args, **kwargs, the Mutable Default Trap and LEGB Scope
Trace the shared-list default, unpack extra arguments, and follow Python's LEGB lookup so familiar function snippets stop producing surprising output.
Updated 29 Jul 20265 min readPython
Python Data Structures: Lists, Tuples, Sets, Dictionaries
Choose among Python's four core containers by the operation you need most. See costs, hashability rules, a decision table and crisp interview answers.
Updated 26 Jul 20265 min readDSA & Algorithms
Java Programming Language: Core Syntax, OOP and a Worked Result Analyser
Build a dependable Java mental model, then trace a complete result analyser from its source file to its exact output. OOP, strings, exceptions and collections all come back to the same five marks.
Updated 26 Jul 20267 min readProgramming Languages Survey
Vector in C++: Create, Update, Iterate and Sort with Runnable Examples
Build a reliable model of std::vector through exact construction cases, safe access, mutation traces, iterator rules, storage choices and practice exercises.
Updated 26 Jul 20266 min readC++
Fuzzy Sets in Artificial Intelligence: Membership Functions, Operations, and Worked Examples
Learn fuzzy sets through one age-based example, from membership grades and alpha-cuts to max-min relation composition. Includes exact exam traps and revision rules.
Updated 25 Jul 20266 min readML & Data Science
File Handling in C: fopen Modes, fscanf vs fgets and the Predict-the-Output Questions
Trace one text file byte by byte to see what fopen returns, where fscanf stops, why fgets may read a blank line and how to write a correct input loop.
Updated 25 Jul 20267 min read87 viewsC
Node.js Interview Questions for Freshers: The Event Loop, Streams, Clustering and Express
Learn the Node.js concepts that expose real understanding: callback order, stream backpressure, multi-core scaling and Express middleware. Includes two exact traces.
Updated 24 Jul 20265 min readWeb Development
Java vs Python for Placements in India 2026: Test Formats, Company Preferences and a Decision Guide
Choose one placement language by test access, DSA fluency and the interview story you want to tell. Then learn just enough of the second language to stay flexible.
24 Jul 20266 min readJava
Python vs C for TCS NQT: Which Language to Pick for the Coding Section
Choose Python or C for TCS NQT by comparing input speed, code length, execution and your existing practice, then lock the choice with a focused three-week routine.
Updated 24 Jul 20265 min readPython
Java Collections Framework Explained: ArrayList, HashMap and TreeMap
Choose Java collections by their contract and operation cost. What ArrayList, LinkedList, HashSet, HashMap and TreeMap each guarantee, what each costs, and how to say so in an interview.
Updated 24 Jul 20265 min readDSA & Algorithms
C++ Programming: Complete Guide to Core Concepts with Worked Examples
Build a connected mental model of C++ through exact traces for references, pointers, virtual dispatch and STL operations, then learn how to check common traps.
Updated 29 Jul 20267 min readProgramming Languages Survey