September 2018
Intermediate to advanced
398 pages
9h 43m
English
Content preview from Scala Programming Projects
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Refactoring monthlyRate
In Chapter 2, Developing a Retirement Calculator, we implemented a Returns.monthlyRate(returns: Returns, month: Int): Double function that returned the monthly return rate for a given month. When we called it with a month exceeding the size of an instance of VariableReturns, we rolled over to the first month using a modulo operation.
This was not completely satisfying, as it could compute unrealistic simulations. Say that your VariableReturns instance contains data for 1950 to 2017. When you ask the monthly returns for 2018, monthlyRate would give you the returns that we had in 1950. The economic outlook of the fifties was very different compared to the current one, and it is unlikely that the returns in 2018 will ...
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O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.Julian F.
I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.Amir M.
I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.