99Tech Code Challenge
Solutions by Khac Vy
Problem 1 — Three Ways to Sum to N
Gauss formula, iterative loop, recursion
JS
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Problem 2 — Fancy Form
Currency swap form with live quotes, vanilla JS
Live Demo
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Problem 3 — Messy React
16 issues identified + refactored version
TSX
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Problem 4 — Three Ways to Sum to N (TS)
Same three approaches, TypeScript version
TS
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Problem 5 — A Crude Server
Express + TypeScript + SQLite REST API
API
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Problem 6 — Architecture
Live scoreboard module specification
Spec
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