JavaScript_Succinctly

Review
The following points summarize what you should have learned by reading this book
(and investigating the code examples). Read each summary, and if you don't
understand what is being said, return to the topic in the book.
An object is made up of named properties that store values.
Most everything in JavaScript can act like an object. Complex values are objects,
and primitive values can be treated like objects. This is why you may hear people
say that everything in JavaScript is an object.
Objects are created by invoking a constructor function with the new keyword, or by
using a shorthand literal expression.
Constructor functions are objects (Function() objects), thus, in JavaScript,
objects create objects.
JavaScript offers nine native constructor functions: Object(), Array(),
String(), Number(), Boolean(), Function(), Date(), RegExp(), and Error().
The String(), Number(), and Boolean() constructors are dual-purposed in
providing a) primitive values and b) object wrappers when needed, so that
primitive values can act like objects.
The values null, undefined, "string", 10, true, and false are all primitive
values, without an object nature unless treated like an object.
When the Object(), Array(), String(), Number(), Boolean(), Function(),
Date(), RegExp(), and Error() constructor functions are invoked using the new
keyword, an object is created that is known as a "complex object" or "reference
object."
"string", 10, true, and false, in their primitive forms, have no object qualities
until they are used as objects; then JavaScript, behind the scenes, creates
temporary wrapper objects so that such values can act like objects.
Primitive values are stored by value, and when copied, are literally copied.
Complex object values on the other hand are stored by reference, and when
copied, are copied by reference.
Primitive values are equal to other primitive values when their values are equal,
whereas complex objects are equal only when they reference the same value.
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