React-native: map constructor does not accept arguments

Created on 18 Oct 2015 · 3Comments · Source: facebook/react-native

Doing this: new Map([[1, 1]]) leads to the error Map constructor does not accept arguments being thrown while running in jscore. It works fine in chrome, though its using v8's native Map.

Shouldn't babel insert the core-js polyfill, which should make jscore standard compliant?

Locked

Source

despairblue

All 3 comments

I'm in pto for two weeks, won't look into it sorry :(

vjeux on 18 Oct 2015

No problem, I think I found out why that is. Probably because of #2000.
So for now I just have to stick the data types JSC supports natively.

despairblue on 18 Oct 2015

Hi there! This issue is being closed because it has been inactive for a while.

But don't worry, it will live on with ProductPains! Check out its new home: https://productpains.com/post/react-native/map-constructor-does-not-accept-arguments

ProductPains helps the community prioritize the most important issues thanks to its voting feature.
It is easy to use - just login with GitHub.

Also, if this issue is a bug, please consider sending a PR with a fix.
We're a small team and rely on the community for bug fixes of issues that don't affect fb apps.