JavaScript has some good basic facilities for implementing data structures without too much effort. In this article the data structure under review is the collection, including an enumerator.

JavaScript’s arrays can hold heterogeneous types, change size on the fly, and readily insert or remove elements. Traditional methods like slice, splice, and push/pop do this by operating on the array ...

Variables hold a wide variety of information temporarily. The JavaScript data types that can be stored in a variable include: JavaScript variables can hold a few other kinds of data, but these are by ...