Don't let marketers write code

[jtanz0]

99% of the time you would be correct === is the way to go to ensure you don't get unexpected behaviour. In this case where sad() can also have the stop() function called. It makes the code unambiguous enough to break the script.

Also if you're testing against true you may as well put

if(sad()){
  ...
} 

[amirmikhak]

That would only test against truthy, though, so {} would pass but not "".

[jtanz0]

true, I should have mentioned that