Notes for using NodeList in javascript _ javascript tips-js tutorial

Understanding NodeList and its close relatives NamedNodeMap and HTMLCollection is the key to a thorough understanding of DOM as a whole. These three sets are all "dynamic". In other words, whenever the document structure changes, they will all get updates. Therefore, they always store the latest and most accurate information. Essentially, all NodeList objects are queries that run in real time when accessing DOM documents. For example, the following code causes an infinite loop:

The Code is as follows: