arrays

Learn to loop through arrays in JavaScript with for loops, for...of (Java enhanced for equivalent), and forEach. Examples, comparisons, sparse arrays handling, and best practices for iteration.

Learn how to fix PowerShell's incorrect sorting behavior for nested integer arrays. Discover workarounds using script blocks, type casting, and best practices for proper numeric sorting.

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 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.

Learn standard approaches for handling array-valued features in traditional ML models through feature engineering techniques like statistical extraction, dimensionality reduction, and feature hashing.

Learn how to efficiently access the ith column in a NumPy array using slicing like test[:, i]. Get the first column [1, 3, 5] from [[1,2],[3,4],[5,6]]. Fast views, no copying, perfect for large numpy arrays and indexing.

Spawn multiple road markings in p5.js using an array. Use frameCount to spawn, safely remove off-screen items, and cap the array at 20 for performance.

Learn how to fix Express.js res.json() returning only the last element of an array instead of the full array. Solutions for proper array handling in Express APIs.

Learn efficient methods to split a cli::array<Byte>^ in C++/CLI into the first 16 bytes and remaining bytes using Array::Copy, ArraySegment, or pin_ptr.