Implement equality for Dollar #3
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Tasklist: - $5 + 10CHF = $10 if rate is 2:1 🎯 - $5 * 2 = $10 ✅ - Make "amount" private - Dollar side-effects? ✅ - Money rounding? - equals() 👈🏼
Tasklist: - $5 + 10CHF = $10 if rate is 2:1 🎯 - $5 * 2 = $10 ✅ - Make "amount" private - Dollar side-effects? ✅ - Money rounding? - equals() 👈🏼
Tasklist: - $5 + 10CHF = $10 if rate is 2:1 🎯 - $5 * 2 = $10 ✅ - Make "amount" private - Dollar side-effects? ✅ - Money rounding? - equals() ✅ - Equal null - Equal object
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As our code is written in Typescript instead of Java, equality works a bit different. There's no
equalsmethod to override in subclasses, so what I've done here was actually implementing aequalsmethod that receives adollarobject and casts it to aDollar, finally comparing their amounts to see if there's a match. The function satisfies the equality logic approached by the book and brings, in the same way, two new concerns to our task list: checking equality when the input is null and when the input is another object. Our current tasklist is: