Code Style Conventions for JavaScript

Code style conventions (much taken from http://javascript.crockford.com/code.html)

• Do not use tab to format code. Use 4 spaces instead (configurable through a good IDE)
• Avoid lines longer than 120 characters (again can be set through an IDE)
• Class comments should be using /** */
• Generally use line comments. Save block comments for formal documentation and for commenting out.
• Give variables their own line and arrange them alphabetically (with nice line comments)
• Define all variables at the top of the function.
• Use camelCase for variable and function names
• Global variables should be in all caps
• Use of global variables should be minimized. Implied global variables should never be used.
• Remove trailing commas if there is no other field following
• Use {} instead of new Object(). Use [] instead of new Array().
• It is almost always better to use the === and !== operators. The == and != operators do type coercion. In particular, do not use == to compare against falsy values.
• Always name magic constants: http://stackoverflow.com/a/47902 if you use a number like '5' or '7' or '318' in your code, make it a constant and give it a good name at the top of the file