Statement var changed = [], n, c, def, o, ol, opt;

I'm a novice to JavaScript so I'm Sure this is simple and I have my ideas but I only have come accross this once and not sure what its doing.

Is this creating an Array called "changed" and making it 6 long ( 6 variables ? ) because the code that follows this assigns values to each,
( i.e. c = false , def = 0) Any help. Thanks

It is just defining a bunch of variables and only the first one is an array, the rest are undefined values.

It might more sense if it was written on their own lines

which is the same thing as doing

If you code JavaScript in strict mode, you can only have one variable declaration for each block scope.

Eric

I never use that form. It's too confusing. I use one per line, each with their own var keyword as in Eric's last example.

I also rarely declare so many global variables. Closures, people, closures!

Bear,

You do not use strict mode? Shame on you! ;)

Eric

Huh?

Bear,

Did you not talk about it in the latest book? http://ejohn.org/blog/ecmascript-5-strict-mode-json-and-more/

Eric

Still not sure what you meant to begin with. I use strict mode for most new script.

Thank you Guys !