ReactJS: React.render is not a function and React.createElement is not a function

Question

I found a problem in my code when I was trying to use these two functions in my React version 15.2.0, nonetheless, I found a workaround but I would like to know if there\'s

Answer 1

import React from "react"
import ReactDOM from "react-dom"
ReactDOM.render(
Hello World!
, document.getElementID("root"))