Persistence with localStorage
Keep the ledger after refresh
Browser memory disappears when a page reloads. localStorage gives a small local-first application durable storage on the same device. Arrays must be serialized to JSON when saved and parsed when loaded.
Parsing can fail if stored data is damaged, so recovery is part of the feature—not an afterthought.
Instrucciones
Create loadTransactions with localStorage.getItem and JSON.parse.
Pista: Read STORAGE_KEY, then parse only when raw exists.
¿Dónde va esto?
// Implement loadTransactions(), saveTransactions(), and render().Escríbelo en la línea 5: debajo de ese comentario, después del código que ya añadiste.
Recover safely with try/catch and return an empty array on failure.
Create saveTransactions(items) with JSON.stringify.
Save after every push and render once on startup.
Tu código
Describe lo que quieres construir para este paso y escribiré el código — luego haz clic en Aplicar para llevarlo a tu editor. Este paso: Create loadTransactions with localStorage.getItem and JSON.parse.