betahatjs

betahatjs is a JavaScript library designed to help developers implement A/B testing within their web applications. It provides a client-side framework for managing experiments, defining variations, and tracking user behavior. The core functionality of betahatjs revolves around assigning users to specific experiment groups and then serving them different content or features based on that assignment. This allows for data-driven decision-making by comparing the performance of these variations.

The library typically works by defining experiments and their corresponding variations in JavaScript code. When a user visits a page, betahatjs determines which experiment they should participate in and which variation they should see. This assignment is usually stored locally, often using browser cookies or local storage, to ensure consistency across sessions. Developers can then use betahatjs to conditionally render different UI elements or execute different code paths based on the user's assigned variation.

Key features often found in betahatjs include experiment configuration, user assignment logic, goal tracking, and data reporting. Goal tracking allows developers to define specific actions users should take, such as clicking a button or completing a form, which are then attributed to the experiment. This data can be sent to an analytics platform for analysis, enabling developers to measure the impact of each variation on key metrics. The library aims to simplify the process of running A/B tests, making it accessible for frontend developers to iterate on user experiences.