Fix dollar side effects #2
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Tasklist: - $5 + 10CHF = $10 if rate is 2:1 🎯 - $5 * 2 = $10 ✅ - Make "amount" private - Dollar side-effects? 👈🏼 - Money rounding?
Tasklist: - $5 + 10CHF = $10 if rate is 2:1 🎯 - $5 * 2 = $10 ✅ - Make "amount" private - Dollar side-effects? 👈🏼 - Money rounding?
Tasklist: - $5 + 10CHF = $10 if rate is 2:1 🎯 - $5 * 2 = $10 ✅ - Make "amount" private - Dollar side-effects? 👈🏼 - Money rounding?
Tasklist: - $5 + 10CHF = $10 if rate is 2:1 🎯 - $5 * 2 = $10 ✅ - Make "amount" private - Dollar side-effects? ✅ - Money rounding?
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After committing a lot of sins in order to make the first test pass, we've introduce a subtle side effect: a dollar object can't be reliably multiplied many times, this happens because we're updating the
amountinstance variable, thus keeping the updated value as part of the current object. To solve this problem, a newDollarobject is now being returned as a result ofDollar.times.Our current tasklist is:
$5 * 2 = $10✅Dollar side-effects?✅