Name	Name	Last commit message	Last commit date
parent directory ..
src	src
README.md	README.md
index.html	index.html
package-lock.json	package-lock.json
package.json	package.json
tsconfig.json	tsconfig.json
vite.config.ts	vite.config.ts

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10 — React Timer

A timer app demonstrating MobX computed values and side effect management with React.

Concepts

observer — re-renders when secondsElapsed or isRunning changes
Computed formatting — formatted getter converts seconds to MM:SS
Side effects — setInterval managed by the store, cleaned up via useEffect on unmount
Non-observable fields — intervalId is excluded from MobX tracking

npm install
npm run dev