GitHub - tc39/proposal-extractors: Extractors for ECMAScript

// binding patterns const Foo(y) = x; // instance-array destructuring const Foo([y]) = x; // nested array destructuring const Foo({y}) = x; // nested object destructuring const [Foo(y)] = x; // nesting const { z: Foo(y) } = x; // .. const Foo(Bar(y)) = x; // .. const X.Foo(y) = x; // qualified names (i.e., a.b.c) // assignment patterns Foo(y) = x; // instance-array destructuring Foo([y]) = x; // n

[efcl]

Extractors syntax proposal