Core-js is a JavaScript standard library, providing polyfills for modern ECMAScript features, ensuring compatibility across different JavaScript environments. Comparing versions 0.2.1 and 0.2.2, the primary difference lies in their release dates, with version 0.2.2 being published on December 12, 2014, a day after version 0.2.1. This suggests that version 0.2.2 likely contains bug fixes, minor improvements, or updated polyfills compared to its predecessor. For developers, this means a potentially more stable and standards-compliant experience.
Both versions share the same set of development dependencies, including Grunt for task automation, Karma for testing, and LiveScript for code generation. The presence of tools like promises-aplus-tests indicates a strong focus on adhering to standards and ensuring the correct implementation of promises. The consistent use of testing frameworks like Karma with various browser launchers (Chrome, Firefox, IE, Opera) highlights a commitment to cross-browser compatibility. This library is invaluable for developers seeking to leverage the newest JavaScript features while supporting older browsers or environments that may not natively support them. Thus, carefully evaluating the changes included in version 0.2.2 is recommended before upgrading to guarantee optimal performance and stability in your projects.
The are not vulnerabilities for the version 0.2.2 of the package core-js