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	docs...
Signed-off-by: Alex A. Naanou <alex.nanou@gmail.com>
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				| @ -17,19 +17,54 @@ | ||||
| // 		----------------+-------------------+--------------------------
 | ||||
| // 		       identity	| equal values are 	| different objects
 | ||||
| // 						| the same entity	| can have same 
 | ||||
| // 						| (singletons)		| structure
 | ||||
| // 						| (singletons)		| structure / "value"
 | ||||
| // 		----------------+-------------------+--------------------------
 | ||||
| //
 | ||||
| //
 | ||||
| // Value vs. Identity
 | ||||
| // ------------------
 | ||||
| //
 | ||||
| // Imagine an apple, it's a "thing" that is an "apple", or we say that
 | ||||
| // it has a value "apple". There are lots of apples in the world, 
 | ||||
| // each one is different but all are apples. Now imagine two people, each
 | ||||
| // looking at an apple, wa can say that each person sees the value "apple",
 | ||||
| // those values are equel, and if those people are sitting at the same 
 | ||||
| // table and looking at the same apple, we say that their apples are the 
 | ||||
| // same, or they are of the same identity, (i.i. the same apple).
 | ||||
| // Then if we can take a different set of people looking at apples, but 
 | ||||
| // now each one has their own personal apple, the values are still the same,
 | ||||
| // both apples are still aplles but now they are different aplles, aren't 
 | ||||
| // they? and thus we say they are of different identities.
 | ||||
| // We'll come back to this concept a bit later, once we introduce JavaScript
 | ||||
| // values and types.
 | ||||
| //
 | ||||
| //
 | ||||
| // Basic values
 | ||||
| // ------------
 | ||||
| //
 | ||||
| // numbers
 | ||||
| // Numbers
 | ||||
| 	var integer = 123 | ||||
| 	var floating_point = 3.1415 | ||||
| 	var hex = 0xFF | ||||
| 
 | ||||
| // strings
 | ||||
| //
 | ||||
| // Note that all numbers are of the same "type", this is different to 
 | ||||
| // alot of other languages where numbers are represented closer to the 
 | ||||
| // low-level hardware implementation and thus are represented by a 
 | ||||
| // whole range of number types.
 | ||||
| //
 | ||||
| // Numbers can also be written using different base notations:
 | ||||
| 	var bin = 0b101010 | ||||
| 	var oct = 052 | ||||
| 	var hex = 0xFF | ||||
| 	var dec = 42 | ||||
| 
 | ||||
| //
 | ||||
| // But note that these are just different notations and all of the 
 | ||||
| // above resolve to the same number.
 | ||||
| //
 | ||||
| 
 | ||||
| 
 | ||||
| // Strings
 | ||||
| 	var string = 'string' | ||||
| 	var another_string = "also a string" | ||||
| 	var template = ` | ||||
| @ -37,11 +72,13 @@ | ||||
| 		this can include \\n's | ||||
| 		also summorts expansions ${ '.' }` | ||||
| 
 | ||||
| // boolieans
 | ||||
| // XXX a note on template strings
 | ||||
| 
 | ||||
| // Boolieans
 | ||||
| 	var t = true | ||||
| 	var f = false | ||||
| 
 | ||||
| // nulls
 | ||||
| // Nulls
 | ||||
| 	var n = null | ||||
| 	var u = undefined | ||||
| 	var not_a_number = NaN | ||||
| @ -77,14 +114,17 @@ | ||||
| 
 | ||||
| // Equality and identity
 | ||||
| //
 | ||||
| // XXX
 | ||||
| 
 | ||||
| 
 | ||||
| // Automatic type coercion
 | ||||
| //
 | ||||
| // XXX
 | ||||
| 
 | ||||
| 
 | ||||
| // Type checking
 | ||||
| //
 | ||||
| // XXX
 | ||||
| 
 | ||||
| 	typeof(42) // -> 'number'
 | ||||
| 	typeof('meaning of life') // -> 'string'
 | ||||
| @ -111,9 +151,11 @@ | ||||
| 	[42] instanceof Object // -> true
 | ||||
| 	{} instanceof Object // -> true
 | ||||
| 
 | ||||
| //
 | ||||
| // this essentially checks if the left oprtand is related to (i.e. in the 
 | ||||
| // inheritance chain of) the second operand's .prototype, or we can say
 | ||||
| // that it id "inherited" from the constructor.
 | ||||
| //
 | ||||
| 
 | ||||
| 
 | ||||
| 
 | ||||
| @ -191,6 +233,7 @@ | ||||
| 
 | ||||
| // Extending builtin types
 | ||||
| //
 | ||||
| // XXX
 | ||||
| 
 | ||||
| // Mixing builtin types
 | ||||
| //
 | ||||
|  | ||||
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