CODEWITHSUNDEEP
typescriptionic2
Walt W
Walt W

Reputation: 3349

How do I get async functions working in Ionic 2's typescript?

When I make a new Ionic --v2 project and use an async function declaration, ionic build browser fails with:

db.ts:15:16: Async functions are only available when targeting ECMAScript 2015 or higher.

I would have thought that changing tsconfig.json's target to es6 would fix the problem, but it did not. What can I do to resolve this so that I can use async/await in my Ionic projects?

Upvotes: 2

Views: 687

Answers (1)

misha130
misha130

Reputation: 5706

Es6 works if you choose your module to be es2015 and not commonjs.

This will of course hinder your support of some mobile devices because not all of them support es6 especially safari so you'll have to babel your code which will add a hefty weight on it.

If you wish you could remain at es5 and specify typescript 2.1 in your package.json. This will prevent you from using aot or prod configuration sadly but otherwise it works.

With angular v4 coming out hopefully someone will update app scripts to support 2.1.

Upvotes: 1

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