Most modern web applications are powered by a REST API under the hood. That way, developers can separate the front-end code from the back-end logic, and users can interact with the interface dynamically. In this three-part tutorial series, you’ll build a REST API with the Flask web framework. You’ll create a foundation with a basic Flask project then add endpoints and connect them to a SQLite database. You’ll test your API with Swagger UI API documentation that you’ll build along […]

A/B testing, also known as split testing, compares two different versions of something (mobile app, web page, advertisement, etc.) to determine which one performs better. A/B testing is a common statistical test, especially in marketing strategy. We can see which version is making more purchases or more clicks after split testing, and then we can make strategic decisions. Many companies use A/B testing in the new technology world, like Instagram, Facebook, Google, LinkedIn, etc.