ECMAScript 6 arrow function that returns an object

When returning an object from an arrow function, it seems that it is necessary to use an extra set of {} and a return keyword because of an ambiguity in the grammar.

That means I can’t write p => {foo: "bar"}, but have to write p => { return {foo: "bar"}; }.

If the arrow function returns anything other than an object, the {} and return are unnecessary, e.g.: p => "foo".

p => {foo: "bar"} returns undefined.

A modified p => {"foo": "bar"} throws SyntaxError: unexpected token: ‘:‘”.

Is there something obvious I am missing?

48 thoughts on “ECMAScript 6 arrow function that returns an object”

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