Any consideration in these syntactic sugars?

💡 Ideas
1

I have seen this proposal which proposes the & operator as a replacement of the first argument.

But considering readability, I think that the following would be a more appropriate one:

const people = [
	{name: "hello", status: true},
	{name: "world", status: false}
];

people.filter@.status; // [{name: "hello", status: true}]
// Equivalent to
people.filter(person => person.status);
// or
people.filter(({status}) => status);

One more syntactic sugar I think of for the frequently-used map method:

const people = [
	{name: "hello", status: true},
	{name: "world", status: false}
];

people[].name; // ["hello", "world"]
// Equivalent to
people.map@.name;
// or
people.map(person => person.name);
// or
people.map(({name}) => name);
2

GitHub - tc39/proposal-partial-application: Proposal to add partial application to ECMAScript gets you 90% of the way there, and Partial expressions · Issue #46 · tc39/proposal-partial-application · GitHub covers the missing link you need.

Between the two of those, you could just do something like this:

people.filter(?.status)
people.map(?.name)
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