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- 1Six Currency Mistakes Developers Make in Code▼Floats, decimal places, symbols, base vs quote, and stale rates. Practical JavaScript and Python examples for handling m
A practical guide is walking developers through six common currency mistakes in software, covering floating-point errors, decimal places, currency symbols, base versus quote rates, and stale exchange rates, with worked examples in JavaScript and Python. The piece argues that handling money in code demands more care than typical numeric programming, and it is being shared among web, fintech and software engineering communities.
- 2Python test fixture exposes allocation bug in banking ledger▼A 100-unit Python fixture exposes a balanced total with wrong customer allocations. Twelve tests cover backing, reservat
A developer has built a 100-unit Python test fixture that reveals a ledger balancing to the correct total while individual customer allocations are wrong. Twelve tests cover backing, reservations and invalid snapshots, aiming to catch faults that aggregate checks miss. The example is being shared as a lesson in financial software testing, where totals can look sound even when per-account balances are incorrect.