Web Front-end

Functional Programming is a paradigm of building computer programs using expressions and functions without mutating state and data.

In this article, we will talk about doing functional programming using JavaScript. We will also explore various JavaScript methods and features that make it possible. In the end, we will explore different concepts associated with functional programming and see why they are so powerful.

WordPress developers spent years struggling with sub-optimal solutions for CI/CD. Despite the fact that they were using the most popular CMS on the market, they often had to improvise and resort to time-consuming practices.

In this article, Toptal WordPress Developer Alexa Green shares her approach to WordPress deployment using Bitbucket and some straightforward code.

Single sign-on is great for users, sparing them from memorizing yet another password; for businesses, removing frictio; and for developers, since less code means less things that can go wrong.

In this Flask login tutorial, we’ll write a step-by-step guide to add a SSO login button into a Flask application with SimpleLogin and Facebook as an identity provider.

Most websites today rely on CSS to deliver more style and polish, but the sheer popularity of CSS is causing many people to take it for granted and overlook its importance.

In this article, Toptal UI Developer Silvestar Bistrović explains this disconnect and outlines why you need a true CSS specialist rather than a jack of all trades.

Nearly every app requires an authorization system on top of an authentication system. We often need a fine-grained permissions model to allow only specific users to access certain resources while simultaneously restricting access for everyone else.

In this tutorial, Toptal Freelance Firebase Developer Joaquin Cid teaches how to build just such a system. Called role-based authentication, we’ll learn how to implement this system in an API using Node.js and Firebase.

Integration tests provide a lot of value considering the time and effort required for testing. React integration tests improve code maintainability, yet they don’t slow down development.

In this article, Toptal Software Developer Anton Rublev demonstrates how you can harness the power of react-testing-library to create superior code without wasting time.

Five years after Dart 1.0, Google’s rewritten open-source language is attracting increasing numbers of developers. What do C# and Java developers need to know to get started with it?