babel-polyfill provides an elegant solution for ensuring JavaScript code compatibility across diverse environments. It emulates missing ES2015+ features in older browsers or JavaScript runtimes. By including it in a project, developers can seamlessly use features like Promises, Map, Set, and Symbol without worrying about browser support. Simply import it at the top of the application entry point. This package simplifies the workflow, allowing developers to focus on writing modern JavaScript, leaving compatibility handled by babel-polyfill.