What are polyfills and how do they work in JavaScript?
An example of an AI chatbot conversation about polyfills for JavaScript features.
What are polyfills and how do they work in JavaScript?
Polyfills are scripts that provide modern functionality on older browsers that do not support it natively. They essentially 'fill in' the gaps.
Can you give me an example of a common polyfill?
Sure! A common polyfill is the 'Promise' polyfill, which allows you to use Promises in browsers that do not support them.
How do I include a polyfill in my project?
You can include a polyfill by adding a script tag in your HTML that points to the polyfill's JavaScript file, or by using a package manager like npm.
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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