JavaScript Polyfill is code that implements the functionality not supported by certain browsers in a non-native way.
What are Polyfills in JavaScript
What is Polyfill in JavaScript with code example.
Polyfill in JavaScript - Ayesha Malik - Medium
Polyfill in Javascript
How to create a polyfill for call, apply and bind
Bootstrap Modal Dialog showing under Modal Background - Rick
Implementing modal popup with native html
How to write polyfills for the call(), apply(), and bind() methods
How To Create A Polyfill. What is a polyfill, and how do you go