this, and prototypal and constructor idioms, a
that is a simple direct assemblage of functions and data, put together in a closure scope which is used to house a reference to itself. Since this hidden
that cannot be rebound, this kind of object is safe from tampering. The name
that-ism is taken from its first successful presentation by Douglas Crockford, by contrast with
this. Every top-level Fluid Component is a
that, as well as many other objects around the framework.
More details and references on
that-ism are at Framework Concepts#that.