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[...Array(5).keys()] not working in Android

See original GitHub issue

Is this a bug report?

Yes

Have you read the Contributing Guidelines?

Yes

Environment

OS: macOS Sierra 10.12.6 Node: 9.8.0 Yarn: 1.5.1 npm: 5.6.0 Watchman: 4.7.0 Xcode: Xcode 9.2 Build version 9C40b Android Studio: 3.0 AI-171.4443003

Packages: (wanted => installed) react: ^16.3.0-alpha.1 => 16.3.0-alpha.2 react-native: 0.54.2 => 0.54.2

Steps to Reproduce

console.log([...Array(2).keys()]) does not produce [0, 1].

Run https://snack.expo.io/SJT6PCPPZ on Android (works)
Run https://snack.expo.io/H1elODwPb on Android (nothing rendered on screen) Additional note: both works on iOS.

Expected Behavior

https://snack.expo.io/H1elODwPb should render data on screen

Actual Behavior

https://snack.expo.io/H1elODwPb renders nothing on screen

Reproducible Demo

see above

Issue Analytics

State:
Created 6 years ago
Reactions:7
Comments:14 (6 by maintainers)

Top GitHub Comments

3reactions

sonayecommented, Jul 13, 2018

Workaround:

Array(5).fill().map((_, index) => index)

3reactions

hramoscommented, Mar 23, 2018

You’re using a different JavaScript engine when remote JS debugging is turned on - possibly Chrome’s (V8).

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