Here is a handy developer tool tip for today: DevDocs
As developers, we spend a large portion of our time, searching for the “name of the function abc that did thing xyz”. Not surprisingly, sites like StackOverflow have become so popular. Yet, SO answers are often full of additional information, and what we need most of the time is a simple search on top of the docs themselves. Years ago, I used a tool for macOS, called Dash.