Toptal Blog

Entity Framework is a great tool, but in some cases its performance is slow. One such case arises when complex queries use “Contains.”

Join Toptal .​NET Developer Anton Shkuratov in exploring how performance issues can be mitigated and finding the best approach to this type of complex queries.

Well-crafted words improve UX and provide people with decision-making clarity. We explore the true value of UX copy and provide sensible writing tips for greater user engagement.

Stock options are widely used in public and private markets, both as malleable trading tools and for employee compensation. Yet many do not understand the components behind how they are priced. This guide discusses what drives the behavior of call and put options and how they can be deployed within portfolio management.

The use of color in design can affect the emotions and moods of the people. Using colors wisely can improve UX and induce desired behaviors in significant ways.

Over the last few years, the world has witnessed an explosion of interest surrounding Artificial Intelligence. Nevertheless, there still exists a significant gap in understanding and knowledge about AI applications, particularly amongst the investor community. This article, the first of a two-part series on the topic, is a collection of thoughts and advice by Toptal Finance Expert Carolyn Deng, based on her experience having founded an AI startup as well as having worked as VC Investor.

Solidity is the programming language of choice for Ethereum and the de facto industry standard for smart contract development.

In the second article of our three-part series, Toptal Blockchain Developer John R. Kosinski takes a closer look at Solidity quirks and features, explaining how to make the most of it.

If you’re searching for the holy grail of bug-free code in JavaScript, Python, Ruby, Swift, and/or Scala, look no further! This monad tutorial by Toptal Freelance Functional Programmer Alexey Karasev takes you from category theory to the practical implementations of the Option/Maybe, Either, and Future monads, plus a sample program—in all five languages.

Billions are lost by businesses due to poor UX. This article outlines key UX statistics and insights that stress the importance of “knowing your user” (with infographic).

UI components are about modularity and reusability. A/B testing can be employed very effectively during a lean product development process to test components that make up an application’s UI.