How do polyfills work?
An example of an AI chatbot conversation about how polyfills enable compatibility in web development.
Can you explain what polyfills are and how they work?
Sure! Polyfills are scripts that provide modern functionality on older browsers that do not support it natively.
How do polyfills actually implement this functionality?
They essentially check if a feature exists in the browser. If it doesn't, the polyfill adds that feature, allowing developers to use it.
Can you give me an example of a common polyfill?
A common example is the 'fetch' polyfill, which allows the use of the Fetch API in browsers that don't support it.
Are there any downsides to using polyfills?
Yes, using polyfills can increase the size of your JavaScript files and may lead to performance issues if not managed properly.
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