Should I transpile mobx6 before use it on IE11

[jeiea]

I just tried migration to mobx6, and stuck on Object.entries usage of mobx.esm.js.
I can try core-js but is it intended usage?

[danielkcz]

Object.entries is an environmental feature and in the case of IE11 you have to polyfill it. Good service is polyfill.io, but it depends on your needs and requirements. You can surely find sole polyfill.