Javascript Polyfills Explained Simply

What is a polyfill? A polyfill is a piece of code that is used to provide/fill-in some feature on older browsers that don't support that feature by default. For example, there are some JavaScript functions/features that Google Chrome supports but Internet Explorer does not support (like Promises or Object.assign()). In order to ensure that the website doesn't break in IE, a developer could write a piece of polyfill code that simulates the missing functionality that IE does not support. 📚 Materials/References: GitHub Code: https://github.com/pkellz/devsage/blo... 🌎 Find Me Here: Twitter:   / realdevsage   Ebooks: https://payhip.com/devsage Discord:   / discord   Merch: https://cottonbureau.com/people/devsage ❌ Correction: At 7:58, I said "signature" when I should have said "reference".