Getting Error Promise is undefined in IE11

Question

I am converting React code to typescript, target in tsconfig is es5.

on running in IE 11 i get an error \"Promise is undefined\"

I know i need to polyfill,bu

Answer 1

You can use the babel-polyfill library which can be found in cdnjs and offers a plethora of polyfills that I found useful for IE compatibility (including Promises).

Note that you don't have to use the babel compiler to use this; simply load the script and you are good to go :)