What is Polyfill in Javascript? Javascript Interview Questions
What is a Polyfill in Javascript?
A Polyfill is a piece of code used to provide modern functionality on older browsers that do not natively support it. 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.
🔖 Topics Covered -
✅ What is Polyfill?
✅ Why it’s being asked in most of the interviews ?
🔖 Chapters-
00:05 Introduction
00:30 What is Polyfill?
02:05 Why it’s being asked in most of the interviews?
03:45 Need of Polyfill?
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