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As our code is written in Typescript instead of Java, equality works a bit different. There's no
equals
method to override in subclasses, so what I've done here was actually implementing aequals
method that receives adollar
object 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: