When should I use a semicolon after curly braces?

Question

Many times I've seen a semicolon used after a function declaration, or after the anonymous "return" function of a Module Pattern script. When is it appropriate to use a semicolon after curly braces?

Answer 1

You also should use a semicolon after a curly bracket after returning a function within a function in Javascript.

function watchOut(problem) {
  return function(number, location) { 
    alert("Be careful! There are " + problem +
          " today!\n" +

          number + " have been spotted at the " + location + "!"
    );
  };
}

Answer 2

Don't use a semicolon:

...if it's just your every-day function declaration:

function foo() {

} // No semicolon

Use a semicolon:

...if it's an assignment:

var foo = function() {

}; // Semicolon

...or a self invoking function:

(function () {

})(); // Semicolon