JavaScript

a free online quick reference by VisiBone
JavaScript Numbers (section of the JavaScript Card and Foldouts)
I hope you find these
excerpts of VisiBone
JavaScript references
very useful.

Contents:
   Number
   String
   Number to String
   Boolean
   Date
   Math
   Array
   Function
   logic
   Object
   type
   object-orientation
   Error (exceptions)
   LEGEND
   FEEDBACK FORM

   Operator Precedence

More content is in the
product closeups, especially:

    DOM (Document
    Object Model)

    Regular Expressions

The information here
is part of two printed
references, that
VisiBone makes, the
JavaScript Card:

a dense, laminated,
four-page 8.5x11 book

and also the
JavaScript Foldouts:

a set of three fan-fold
booklets with larger
print and smaller
folded size.

JavaScript Strings (section of the JavaScript Card and Foldouts)
Does it look busy?
Well, it wasn't meant
for idle people!

Here are all the
features of client-side
JavaScript, in
living code.

English takes a
back seat here.
To make solid
code, learn to
read, think and
write in
JavaScript.
Fluency will
serve you best
in the end.

The assert()
function is the best
invention for
programming
since the subroutine.

Not only will its
proper use make
your software
test itself, earning
and protecting
reliability from the
start.

But it's a clear,
concise way to
describe exactly
what all the features
of JavaScript do.

Did I mention?
Feedback
form below!

Regular Expressions
are very versatile for
validating or
analyzing strings.

See the JavaScript
Regular Expressions
reference.

JavaScript Number / String conversion (section of the JavaScript Card and Foldouts)

JavaScript Boolean (section of the JavaScript Card and Foldouts)

JavaScript Dates (section of the JavaScript Card and Foldouts)
The assert() function
is like a video camera.
Hold on now, this will
make sense in a sec.

Think how you first learn
human language. You
observe words spoken
and their effects.
Person A: "I'm hungry"
Person B gives A food.
You infer an association
between making the
sound "hungry" and
getting fed.

This card can teach you
JavaScript not by talking
about it but by doing it
and (here's the part I'm
smug about) showing
you the effects. The
assert() function is a
great way of showing
you what JavaScript
code does.

Imagine, instead of a
dead-tree dictionary
that defines words in
terms of ... other words,
it would instead show
a video clip of people
using and responding
to those words.

Assert makes the
effects of JavaScript
code visible, just like
this video-dictionary
would make the
effects of human
words visible.

JavaScript Math (section of the JavaScript Card and Foldouts)
JavaScript Arrays (section of the JavaScript Card and Foldouts)

JavaScript Functions (section of the JavaScript Card and Foldouts)

JavaScript Programming Logic (section of the JavaScript Card and Foldouts)

VisiBone also makes
several printed web
color references.

Posters & Charts
Webmaster's Palette Color Wheel Poster

Laminated Cards
Color Card, laminated and slick for clients
that match the
"VisiBone2"
swatch collection
in Adobe
Illustrator and
Photoshop.

Plus two varieties
of Mouse Pads.

And a chart with
1068 non-web-safe
colors:

Guaranteed compatible
with walls in Asia,
Europe, the Americas,
Africa, Australia and
California.

JavaScript Objects (section of the JavaScript Card and Foldouts)

JavaScript Types (section of the JavaScript Card and Foldouts)

JavaScript Object Oriented Programming (section of the JavaScript Card and Foldouts)

JavaScript Exceptions (section of the JavaScript Card and Foldouts)

Legend (section of the JavaScript Card and Foldouts)

Thank you, and good luck building!
— Bob Stein, VisiBone, stein@visibone.com

JavaScript Reference Contents:
   Number
   String
   Number <–> String
   Boolean
   Date
   Math
   Array
   Function
   logic
   Object
   type
   object-orientation
   Error (exceptions)
   LEGEND

Here's a table of Browsers versus the JavaScript versions they claim to support: