What is a jsi?

JSI typically refers to JavaScript Integrators or JavaScript Interfaces, but it can also stand for John Snow, Inc., a public health consulting firm. In the context of technology, JSIs are used to integrate JavaScript code with native modules in frameworks like React Native, enabling seamless communication between JavaScript and native platform code. In the public health industry, John Snow, Inc. (JSI) works to improve health systems and outcomes worldwide through consulting, technical assistance, and research.