What are the differences between core-js and Babel?
Core-js is a library that provides polyfills for modern JavaScript features, while Babel is a transpiler that converts ES6+ code into ES5.
Can you give me examples of features that core-js polyfills?
Sure! Core-js polyfills features like Promises, Symbol, and Array methods like flat and flatMap.
Is it necessary to use both core-js and Babel together?
Not necessarily, but using both can be beneficial. Babel handles syntax transformations, while core-js provides polyfills for missing features.
What are the performance implications of using core-js?
Using core-js can increase bundle size, but it ensures compatibility with older browsers. It's important to balance size and compatibility.
Are there alternatives to core-js?
Yes, alternatives include polyfill.io and the es6-shim
library, but core-js is one of the most comprehensive.
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