Typeof verification in "var?" verification?

[rafaelks]

Hello,

Maybe I'm testing wrong, but this code:

foo(bar) if bar?

Is outputing it:

if (bar != null) {
  foo(bar);
}

I think that the correct output would be it:

if (typeof bar !== 'undefined' && bar !== null) {
  foo(bar);
}

Am I wrong?

In CoffeeScript.org, the example simulates exactly what I think, but the CoffeeScript "compiler" don't do it. (See Overview topic in CoffeeScript.org)

Thanks!

[vendethiel]

Could you please search in the issues ? This has been answered at least ten times.
Null check is only done if the variable isn't in the scope. Else it's useless

edit : FAQ => #2316 - see #1869 #1631 #2499 etc

[rafaelks]

Thanks for you explanation and sorry by duplicated issue.

I'm closing this issue.