basickarl
basickarl

Reputation: 40484

async function or async => when exporting default?

export default async function () {

};

or

export default async () => {

};

Which one is preferred when exporting a default function and why?

Upvotes: 51

Views: 53772

Answers (1)

Bergi
Bergi

Reputation: 664630

The first one is generally preferred. It's a declaration, not an expression value, which has subtle advantages. And it can easily be named if you want, which is a good practice. Also, arrow functions have a few disadvantages in certain situations, so unless you absolutely need them to preserve a this value (etc.) you'd rather avoid them. Saving 5 characters to type is hardly worth it.

Upvotes: 48

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