Echo JS 0.11.0

(pros/cons)
(-) requires training - this syntax may be unfamiliar/confusing to some people
(-) over-use is very bad - the problems are mentioned in MDN.
(+) when used exactly right - it saves a few characters

IMO, when working in a company/team/open-source-project it's just not worth the effort and risk (of over-use).


You can do something like this instead (a little more verbose but more readable for humans and compilers):
```
{
  const {loadEventEnd, navigationStart} = window.performance.timing;
  console.log(loadEventEnd - navigationStart);
}
```