Coding & Skills
369 articles in this topic
C Compilation Model Tutorial: From Source Code to Executable
See what GCC does between a readable C file and a running program. Trace one two-file project through every build stage, diagnose failures, and test your understanding.
Updated 11 Sep 20266 min readC
JavaScript Arrays and Array Methods: A Beginner Tutorial with Runnable Examples
Learn JavaScript arrays by tracing what each method returns and whether it changes the source. Includes runnable examples, mutation warnings, diagrams, and exercises.
Updated 11 Sep 20265 min readWeb Development
Java Strings and String Pool: Literals, intern(), == and equals() with Worked Examples
Trace pooled and non-pooled Java String references, compare identity with content, and learn to count objects without hiding the assumptions.
Updated 11 Sep 20266 min readJava
Python Comprehensions Tutorial: List, Set and Dictionary Examples
Learn to read Python comprehensions in execution order, choose the right output collection, trace nested forms, and repair common syntax mistakes with runnable examples.
Updated 11 Sep 20266 min readPython
Algorithms for GATE CS: Syllabus Areas, Weightage and How to Prepare
Understand what GATE CS Algorithms covers, how to judge its changing weightage, and how to prepare complexity, paradigms and graph algorithms in a useful order.
Updated 10 Sep 20264 min read60 viewsDSA & Algorithms
Go Learning Roadmap: From Syntax to a Tested HTTP Service
Follow a ten-week, project-led Go plan that turns basic syntax into a tested local task service, with clear weekly gates and recovery rules.
Updated 10 Sep 20266 min readProgramming Languages Survey
C++ Function Overloading and Default Arguments: Resolve Valid and Ambiguous Calls
Learn why default arguments affect viability but not ranking, then resolve five score calls using exact matches, promotions and conversions. Includes ambiguity repairs and call-time default evaluation.
Updated 10 Sep 20266 min readC++
Fundamentals of Heuristic Search: A* Worked Example and Exam Traps
Learn why Greedy Best-First and A* make different choices, then trace both on one weighted graph and check heuristic properties and common traps.
Updated 10 Sep 20265 min read61 viewsML & Data Science
Pointer Arithmetic in C: Rules, Worked Examples, and Common Errors
Understand how C pointers move across arrays, where arithmetic is valid, and why one-past pointers are useful but never readable. Includes code, traces, and common traps.
Updated 10 Sep 20266 min read51 viewsC
Promises in JavaScript: Chaining, Errors, and Runnable Examples
Learn what a Promise contains, predict handler order, connect values through a chain, recover from failures, and choose the right concurrency helper.
Updated 9 Sep 20265 min readWeb Development
Java JDK Setup: Install, Verify and Run Your First Program
Install Java with proof that your compiler and runtime agree. This tutorial separates JDK, JRE and JVM, then traces one program from source to exact output.
Updated 9 Sep 20266 min readJava
Python File Handling and Data Analysis: A Complete Worked Guide
Follow one Python standard-library program from safe CSV reading and row validation to exact topic summaries, rejected-row tracking, and reproducible output files.
Updated 9 Sep 20265 min readPython