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SQL
Intermediate
SQL CTEs: WITH Clause and Recursive Queries
Master SQL Common Table Expressions — single and multiple CTEs, recursive CTEs for hierarchies, and running totals with CTEs.
HTML & CSS
Advanced
PHP Fibers: Concurrency Without Threads in PHP 8.1
Understand PHP Fibers — cooperative multitasking, how Fibers differ from generators and threads, and how async PHP frameworks use them.
PHP
Advanced
JavaScript Symbol, WeakMap and WeakRef Explained
Master JavaScript Symbol for unique keys, WeakMap for memory-safe caching, and WeakRef for holding objects without preventing garbage collection.
HTML & CSS
Intermediate
Graph Algorithms: BFS, DFS, Dijkstra and Topological Sort
Master graph algorithms — BFS for shortest unweighted path, DFS for traversal, Dijkstra for weighted shortest path, topological sort for DAGs.
HTML & CSS
Intermediate
PHP Generators and yield: Lazy Evaluation Explained
Master PHP generators — yield keyword, lazy evaluation, memory-efficient pipelines, yield from, and two-way communication with send().
Laravel Eloquent ORM: Relationships, Eager Loading and Query Builder
137 views
System Design Interview: Design a Chat Application Like WhatsApp
132 views
SQL Window Functions: ROW_NUMBER, RANK, DENSE_RANK, LAG, LEAD Explained
128 views
PHP File Handling: Read, Write, and Manage Files
56 views
Git Conflict Resolution
49 views
