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Kotlin vs. Java: All-purpose Uses and Android Apps

Kotlin and Java are two powerful general-purpose languages popular for Android and beyond. We’ll discuss their top features and differences, then focus on how to smoothly transition between the two.

13-minute readContinue Reading
Gabe Giro

Gabe Giro

Gabriel is a senior Android engineer with eight years of experience building apps from scratch in Kotlin and Java, and facilitating conversions between the two languages. Gabriel has worked on multimillion-dollar apps and has industry experience at companies like HBO and Yahoo.

Investing in Unit Testing: Benefits and Approaches

Stakeholders demand quick fixes for a buggy app release. Such patching is costly, and does not always offer a complete solution. Break the cycle with unit testing, a worthwhile investment in project quality.

10-minute readContinue Reading
Dacian Florea

Dacian Florea

Dacian is a senior full-stack mobile applications developer and a contributor to the Flutter framework. He specializes in rigorous testing solutions that help companies around the world design and deliver quality software applications.

Unit Testing in Flutter: From Workflow Essentials to Complex Scenarios

Incorporate comprehensive unit testing into your Flutter project to ensure best practices and reduce bugs before—not after—the app’s release.

10-minute readContinue Reading
Dacian Florea

Dacian Florea

Dacian is a senior full-stack mobile applications developer, a Flutter expert, and a contributor to the Flutter framework. He helps companies around the world design and implement quality software solutions and deliver excellent user experiences.

Future-proof Your Android Code, Part 2: Functional Reactive Programming in Action

The functional reactive programming (FRP) paradigm is becoming increasingly mainstream. In this installment, we discuss FRP essentials like system design and libraries, and implement a sample application.

8-minute readContinue Reading
Iliyan Germanov

Iliyan Germanov

Iliyan is an Android developer and CTO who has founded four startups and created several top-rated apps, including Ivy Wallet, which has received 10 YouTube tech community “best UI/UX” awards. He specializes in functional programming, UX, Kotlin, and Haskell.

The Foundations of Functional Reactive Programming in Android

This tutorial explores the mathematical concepts behind two key programming paradigms, functional programming and reactive programming, so you can build long-lasting Android architecture.

12-minute readContinue Reading
Iliyan Germanov

Iliyan Germanov

Iliyan is an Android developer and CTO who has founded four startups and created several top-rated apps, including Ivy Wallet, which has received 10 YouTube tech community “best UI/UX” awards. He specializes in functional programming, UX, Kotlin, and Haskell.

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WebAssembly/Rust Tutorial: Pitch-perfect Audio Processing

WebAssembly gives near-native performance to web apps and allows languages other than JavaScript—plus their libraries—to be used on the web. This tutorial leverages Rust and the Web Audio API to make a basic guitar tuner app that runs at 60 FPS, even on mobile.

24-minute readContinue Reading
Peter Suggate

Peter Suggate

Peter is a full-stack developer with 15 years of experience building apps for the web and desktop.

Enhanced Git Flow Explained

Git provides basic branching operations, but advanced patterns are left up to the user. The popular “Git flow” branching model helps, but can also complicate some common procedures.

Thankfully, a new variation retains the benefits, while streamlining everyday work.

14-minute readContinue Reading
Daniel Ivanov

Daniel Ivanov

Daniel has helped startups bring products to market for more than a decade using best-of-breed approaches to HTML/CSS, JS, Python, and C#.

Toptal Engineering Expert

Gabriel Courtemanche

Gabriel is a highly efficient and reliable professional who possesses a broad skill set for web application development. He's been working on a range of products and clients—from working on scalability problems in production engineering teams at Shopify and Autodesk to launching new applications for startups. Most of his work consists of leading technical teams, by creating an easy development environment, fixing technical debts, providing best practices code examples, and mentoring devs.
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