Didact: Instances, reconciliation and virtual DOM

A step-by-step walkthrough of building a React-like library called Didact, focusing on implementing virtual DOM, instances, and a reconciliation algorithm. Covers how to diff element trees between renders, reuse DOM nodes when element types match, handle children reconciliation positionally, and remove DOM nodes cleanly. Includes code examples for instantiate, reconcile, and updateDomProperties functions, with a working codepen demo.