If the last argument to a function is a destructured object
with at least one having a default value, makie it `{}` by default.
For example:
```js
function doSomething ({ a: true }) {
console.log(a)
}
doSomething({ a: false }) // OK
doSomething() // fails because the object is undefined
// solution
function doSomething ({ a: true } = {}) {
console.log(a)
}
```
I find that for complex objects (such as options to methods),
having to make the argument’s default value `{}` in every
function declaration inconvenient.
Let me know your feedback / comments.
Regards
Jorge Bucaran
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