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The Toptal Blog is the top hub for developers, designers, finance experts, executives, and entrepreneurs, featuring key technology updates, tutorials, freelancer resources, and management insights.

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Mirror API Tutorial: Google Glass for Web Developers

by Demir Selmanovic

Wouldn’t it be great to develop for Google Glass without learning a new programming language, and even by just using knowledge common to all web developers? Yes, it is possible! This article will introduce you to web development techniques you can use to build application used on Google Glass.

12 minute readContinue Reading
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Learning Swift Programming: Is it Ready for Prime Time?

by Joshua Ballanco

Since Apple's launch of Swift this past June, many iOS developers have been struggling with the question of if, how, and when to transition from Objective-C to Swift. This article explores some important points to consider before jumping into Swift development.

10 minute readContinue Reading
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JavaScript Promises: A Tutorial with Examples

by Balint Erdi

Promises are a hot topic in JavaScript, and you should definitely get acquainted with them. They are not easy to wrap your head around, it can take a few articles, and a decent amount of practice to comprehend them. Aim of this article is to help you understand Promises, and nudge you to get more practice using them.

9 minute readContinue Reading
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A Guide to Rails Engines in the Wild: Real World Examples of Rails Engines in Action

by Joe James

Why are Rails Engines not used more often? I don't know the answer, but I do think that the generalization of "Everything is an Engine" has hidden the problem domains that they can help to solve.

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An iOS Developer’s Guide: From Objective-C to Learning Swift

by Marco Mustapic

After 6 years of improving and working on Objective-C, Apple decided to throw another challenge at developers. Once again, iOS developers will need to learn a new programming language: Swift. Swift 1.0 is already a stable and strong development platform, which is sure to evolve in interesting ways over the coming years. It is a perfect moment to start exploring this new language, as it is the future of iOS development.

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AngularJS Tutorial: Demystifying Custom Directives

by Eric W. Greene

One of the most capable, extensible and popular front-end frameworks is AngularJS, and one of the most useful components of the AngularJS framework is something called a directive. In this article, the four functions that execute as a directive is created and applied to the DOM will be explored.

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3D Data Visualization with Open Source Tools: A Tutorial Using VTK

by Benjamin Hopfer

How do we understand and interpret the huge amounts of data coming out of simulations? How do we visualize potential gigabytes of datapoints in a large dataset? In this article I will give a quick introduction to VTK and its pipeline architecture, and go on to discuss a real-life visualization example.

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The 5 Most Common Mistakes HTML5 Developers Make: A Beginner’s Guide

by Demir Selmanovic

It's been over 20 years since Tim Berners-Lee and Robert Cailliau specified HTML, which became the standard markup language used to build the Internet. HTML5 was supposed to finally solve our problems and become "one standard to rule them all (browsers)". This was probably one of the most anticipated technologies since creation of the World Wide Web.

6 minute readContinue Reading
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Simple Data Flow in React Apps Using Flux and Backbone: A Tutorial with Examples

by Alex Rattray

React.js is a fantastic library. It is only one part of a front-end application stack, however. It doesn't have much to offer when it comes to managing data and state. Facebook, the makers of React, have offered some guidance there in the form of Flux. I'll introduce basic Flux control flow, discuss what's missing for Stores, and how to use Backbone Models and Collections to fill the gap in a "Flux-compliant" way.

9 minute readContinue Reading

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