my javascript book talks about the global object saying:

the global object defines an initial set of properties that include:

1. global properties (such as undefined, Infinity and Nan)
2. global functions (such as isNan(), parseInt() and eval()
3. constructor functions [such as Date(), RegExp(), String(), Object() and Arrat() ]
4. global objects (such as Math and JSON)

My questions:

re #4 > why arent these called "global propertes" .. since they are "attached" to the global object?

re: #2 & 3 > whya arent these called "methods" .. since they are also "attached" to the global object.

also > why are the items listed in #1 called "properties" while those in #4 called "objects" .. when BOTH are "attached" to the global object.

I use the word "attached" i quotes cuz I'm not sure of the precise terminology I should be using here.