Is there a better way to do optional function parameters in JavaScript? [duplicate]

Answer 1

This is what I ended up with:

function WhoLikesCake(options) {
  options = options || {};
  var defaultOptions = {
    a : options.a || "Huh?",
    b : options.b || "I don't like cake."
  }
  console.log('a: ' + defaultOptions.b + ' - b: ' + defaultOptions.b);

  // Do more stuff here ...
}

Called like this:

WhoLikesCake({ b : "I do" });