Good Javascript Practices

[Guest FirefoxRocks]

http://www.astahost.com/Good-Javascript-Pr...137#entry139137

EditedReason for edit:

[justsomeguy]

The guy who wrote that for jslint did a good enough job, you don't really need to re-write it with things that might not be true. This statement, for example, is not true:

In the previous example, declare def() before abc() because you will be using it in abc().

You can declare functions in any order and have them all still work. If you don't understand why, then you don't understand Javascript parsing. That's not the reason he said to declare variables before you use them.

Use commas as a separator only

How else would you use a comma?

Maybe it's to save space, maybe it's for some other reason.

It's not to save space. Maybe you can figure out the 'why' before you tell people to do it.

Use the == operator to compare values.

Use === to compare instead of ==

Which is it? What should you do if you know the values are different types?

10. Avoid ++ and --Now this is one that I don't understand. Apparently it is a security issue to use ++ and -- increment operators.

I don't understand why you're telling people to do things, and then saying that you don't understand why you should do those things. I'd also like to see an example where using one of those operators introduces a security problem.