If you have a synchronous function that suddenly needs to do something asynchronous, then everything that uses that function needs to become async too. http://

If you have a synchronous function that suddenly needs to do something asynchronous, then everything that uses that function needs to become async too. http://journal.stuffwithstuff.com/2015/02/01/what-color-is-your-function/ http://journal.stuffwithstuff.com/2015/02/01/what-color-is-y...