Pass down props using React childContextTypes in a deeply nested component tree
In our previous article on React childContextTypes we saw how React lets you accumulate props along a nested hierarchy. At the time of writing, I wasn’t aware that there is one more characteristic of childContextTypes that is extremely handy
Properties specified in childContextTypes are propagated along the the hierarchy even if none of the intermediate components in the hierarchy implement either the getChildContext method or have the childContextTypes property.
See the below example for some more clarity and fork THIS JSFIDDLE to experiment with it yourself.