Maximum Number of JSX Root Nodes Back

Currently, in a component's render, you can only return one node; if you have, say, a list of divs to return, you must wrap your components within a div, span or any other component.

Don't forget that JSX compiles into regular JS; returning two functions doesn't really make syntactic sense. Likewise, don't put more than one child in a ternary(三元操作符).