F# is a strongly typed, multi-paradigm programming language with imperative, functional, and object-oriented programming methods. In the first part of our F# tutorial series, Toptal Freelance Software Engineer Shanglun Wang demonstrates how to get started and create a simple app using nothing but F#.

Wake up! It's HighScalability time: This is your 1500ms latency in real life situations - pic.twitter.com/guot8khIPX — Ivo Mägi (@ivomagi) November 27, 2018

Keeping your Android codebase maintainable as your codebase grows can be a challenge. In this article, Toptal Freelance Android Developer Abhishek Tyagi shows how to combine MVVM with Clean Architecture—the latter as described by Robert C. Martin—to write decoupled, testable, and maintainable code.

  This article is written by Preetam Jinka, Senior Infrastructure Engineer at ShiftLeft. Originially published as Time Series at ShiftLeft.    Time series are a major component of the ShiftLeft runtime experience. This is true for many other products and organizations too, but each case involves different characteristics and requirements. This post describes the requirements that we have to work with, how we use TimescaleDB to store and retrieve time series data, and the tooling we’ve developed to manage our infrastructure.

As UX strategy and design become increasingly important, the challenge of incorporating UX specialists into Agile methodologies becomes equally important. In this article, Toptal Freelance UX Designer Debbie Levitt explains how UX designers and creative teams can be effectively incorporated at all stages of Agile development.

iOS developers love the power of UIKit, and animating a UIView is usually fairly easy. However, if you want to chain animations together and set up dependencies between them, your code can quickly become difficult to read with many nested closures and indentation levels. In this article, I’ll explore how to apply the power of a reactive framework such as RxSwift to make that code look much cleaner as well as easier to read and follow. My client wanted a story told through a sequence of animations rather than by playing a pre-rendered video, and with RxSwift, we easily tweaked it to perfection.

Wake up! It's HighScalability time:   We all know the oliphant in the room this week (reinvent)   Do you like this sort of Stuff? Please support me on Patreon. I'd really appreciate it. Know anyone looking for a simple book explaining the cloud? Then please recommend my well reviewed (30 reviews on Amazon and 72 on Goodreads!) book: Explain the Cloud Like I'm 10. They'll love it and you'll be their hero forever.