99Tech Code Challenge

Solutions by Khac Vy

Problem 1 — Three Ways to Sum to N Gauss formula, iterative loop, recursion
JS
Problem 2 — Fancy Form Currency swap form with live quotes, vanilla JS
Live Demo
Problem 3 — Messy React 16 issues identified + refactored version
TSX
Problem 4 — Three Ways to Sum to N (TS) Same three approaches, TypeScript version
TS
Problem 5 — A Crude Server Express + TypeScript + SQLite REST API
API
Problem 6 — Architecture Live scoreboard module specification
Spec