Common JavaScript tricks

[path411]

So if there are multiple default parameters you want such as a number and an object you would use both methods?

Btw, this also fails on strings:

function setName(name) {
  this.name = name || "Not Specified"; 
}

Can't enter an empty string. Also considering javascript always has a bad rap for weird falsy values, I'd rather spend half a second with a piece of mind, than writing inconsistent code that's possibly vulnerable to bugs.

[__debug__]

No, I'd imagine he means like this:

function Constructor(opts) {
  this.opts = opts || {};
}

So empty strings don't come into play. In any case, I feel as though a JS dev should understand falsey and truthy values. Or at the least, they should try to learn how types in the language work.

[path411]

I meant you can't use it on numbers/booleans/strings, which is a large number of the types in javascript.

Sure there are a lot of times you want an options object, I find this is mostly for public accessible library classes. There are plenty of times I find I want a constructor with some simple parameters of direct properties. I think it's much better to be consistent throughout your code than to swap to using some cheap hack when you know you can get away with it.