0x6 Appeal

• 2009-08-14

  [.js] Conditional Statement Shortcuts

  If you’re writing a simple if statement that sets one variable to one of two conditions, you can use something called a ternary operator. It’s basically a one line conditional statement.

  Say you have some JavaScript that checks a user’s login status:

  
      var status;
      if (login) {
          status = 'signed in';
      } else {
          status = 'signed out';
      }
  
  
  

  You can rewrite it simply as:

  
      var status=(login)?'signed in':'signed out';
  
  
  

  Pretty simple, eh?