The Archive

Long-form notes on systems, software engineering, architecture, and lessons from real projects.

Jonathan JulianiSr Software Engineer · J Tech | WithClutch Inc

Data StructuresJavaScriptApr 28, 2024

Hash tables in JavaScript: native Map, collisions, and O(1) lookups in practice. Implementation plus gaps the docs skip.

Node.jsJavaScriptApr 21, 2024

Graphs in JavaScript with adjacency lists: modeling, neighbors, and a solid setup for BFS and DFS. Working Node.js code.

Node.jsJavaScriptApr 14, 2024

Trees in JavaScript: nodes, traversals, and the foundation for BSTs and heaps. Clear, practical Node.js examples throughout.

Node.jsJavaScriptApr 7, 2024

FIFO queues in JavaScript/Node.js: simple implementation, priority patterns, and where queues show up in production apps.

Node.jsJavaScriptApr 1, 2024

Stack (LIFO) in JavaScript: implementation, real use cases, and commented Node.js code. Straightforward hands-on tutorial.