programming

JSON files don't support comments natively, causing parser errors with // or /* */. Discover workarounds like JSON5, _comment keys, preprocessing, JSON Schema $comment, and alternatives for adding notes to JSON effectively.

Use git clean to remove local untracked files from your Git working tree safely. Learn git clean -n for dry run, -f to force delete, -fd for directories, and -x for ignored files. Essential Git cleanup guide with flags and tips.

Learn how to generate random numbers in a specified range in JavaScript using Math.random(). Get random integers inclusive or exclusive, floats, and secure options with code examples for dice rolls and more.

Learn to view Git stash contents without applying using git stash list for inventory, git stash show for summaries, and git stash show -p for full diffs. Safe inspection of changes, untracked files, and advanced tips for Git workflows.

Learn to use git add -p for partial commits in Git. Stage only specific lines like 15 out of 30 changes, verify with git diff --staged, and commit cleanly. Perfect for atomic git commits and better code reviews.

Reset your local Git branch to exactly match the remote repository using git fetch origin, git reset --hard origin/branch, and git clean -fdx. Discard all local changes safely with step-by-step guide and backups.

Step-by-step guide to delete a Git branch both locally and remotely. Use git push origin --delete, git branch -d bugfix, and git fetch --prune to remove branches and prevent reappearing after git pull. Fix common errors.

Official C# version history with exact release dates from 1.0 to 12.0. Discover key features per version and why C# 3.5 never existed—shipped with .NET 3.5 but language stayed at 3.0. Complete timeline for developers.

Learn how to add new keys to a Python dictionary using assignment, update(), setdefault(), and merge operators. No dict.add() method—use these efficient idioms for key-value pairs with examples and pitfalls.

Discover the optimal sock pairing algorithm using in-place sorting like heapsort for O(n log n) time under log-space constraints. Compare with hashing, radix methods, and practical tips for 30 pairs. Relates to element distinctness.

Learn what stack and heap are in programming, their physical location in computer memory, differences in management by OS or runtime, sizes, scope, and why stack is faster. Detailed guide with examples.

Chrome suggests existing passkeys even with empty excludeCredentials array. Learn why this happens and how to fix WebAuthn re-registration UX issues.

Learn best practices for JSON null representation across all data types. Understand conventions for integers, strings, collections, and when to use null vs. omitting fields.

Explore practical approaches for creating instances of generic types in Java, including Class<T> parameters, factory patterns, and supplier interfaces as alternatives to reflection-based solutions.

Learn how to access the index or key in a PHP foreach loop using `foreach ($array as $key => $value)`. Perfect for numeric and associative arrays without manual counters. Examples, pitfalls, and tips included.

Learn different approaches to exit nested loops in JavaScript using labeled statements, flags, and other techniques for efficient code execution.

Learn what subscriptable means in Python, which built-in types support indexing operations, and how to check if objects support [] syntax with __getitem__.

Learn about the purpose of exclamation marks in Ruby method names, differences between bang and non-bang methods, and best practices for using them in Ruby programming.

Exploring what happens when malloc'd memory isn't freed before C program termination. OS memory reclamation vs proper memory management practices for simple vs long-running applications.

Learn how to add elements to empty arrays in PHP using bracket notation and array_push(). Compare performance and see practical examples for dynamic array manipulation.