Polyfills, Ponyfills, and Transpiling

When discussing new JavaScript features and syntax, it’s common to hear words like polyfilltranspile, and even ponyfill used. For example, someone might say, “In order to use this in older browsers, you’ll need to use Babel to transpile the code.” Or maybe, “Make sure to provide a polyfill for this functionality so that older browsers can use it.”

If you’re not familiar with these terms, you may be asking yourself, “What’s the difference? Are these all just interchangeable words that mean the same thing?”

In this article, we’ll define these terms and clear the air of any surrounding confusion.

#javascript

Polyfills, Ponyfills, and Transpiling