Photo by fabio on Unsplash. The Graph data structure is a collection of nodes. But unlike with trees, there are no rules about how nodes should be connected. There are no root, parent, or child nodes.

In the past two columns, we’ve looked at higher-order functions and talked a little bit about the power of functional programming. So far, the concepts we’ve covered do little to indicate how powerful ...

Press enter or click to view image in full size In different languages including javascript , “map” is introduced as a higher order function that uses another function in order to transform any ...