Coerce any nullish var into a bool in one command

In JavaScript we can coerce any variable into a boolean using either !!myVar or Boolean(myVar).

But these coercions are based on whether the value is falsy.

I wanted to know if there's a way to make it based on whether the value is nullish.

I know how to do it with "long" code:

if (myVar ?? true) {...

where the condition will be coerced into false only if nullish, and true otherwise.

But I want to know if it's possible to do it with just one operator like with the falsy case (something like

if (??myVar) {...

or so). Like "syntactic sugar".

I think it would make my code much cleaner and readable.

I'm affraid it's not possible. You have to keep using the nullish coalescing operator (??) or you could use your own function :

function isNullish(x) {
  return x === null || x === undefined;
}