Introducing Expr: A Powerful Expression Language for Configurations

2023/08/10

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The article introduces Expr, a powerful expression language that provides an engine for compiling and evaluating expressions. Designed for simplicity, speed, and safety, Expr allows users to use expressions inside configurations for more complex logic. It is a perfect candidate for the foundation of a business rule engine, enabling dynamic configuration without the need for program recompilation. The article highlights the features of Expr, including its ease of installation and comprehensive documentation. It also mentions an embeddable code editor written in JavaScript, which offers syntax highlighting and autocomplete based on type declarations. The article concludes with information about the MIT license and invites companies to add themselves to the list of Expr users. This article is a must-read for developers looking to enhance their configuration capabilities with a powerful expression language.