Diffable Data Source is a new declarative API for UITableView and its counterpart UICollectionView introduced at WWDC19, IOS 13 as a replacement for UITableViewDataSource and UICollectionViewDataSource.

In this article we will take a brief look at UITableViewDataSource then we will go directly to …

Function builders is a swift language feature, first introduced in swift 5.1 available from Xcode 11. it helps in building declarative DSL ( Domain Specific Language ) for constructing user interface hierarchies or create an API that apply transformations to the statements in a way that make the API …