Warning: old core-js versions could cause a slowdown up to 100x

[igormontella]

When I build my environment I receive this warning:

warning react-native-calendar-picker > recyclerlistview > prop-types > fbjs > [email protected]: core-js@<3.3 is no longer maintained and not recommended for usage due to the number of issues. Because of the V8 engine whims, feature detection in old core-js versions could cause a slowdown up to 100x even if nothing is polyfilled. Please, upgrade your dependencies to the actual version of core-js.

[peacechen]

Thanks for reporting this issue. Please report this in the recyclerlistview project if it hasn't been already.

[igormontella]

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