ifsnow bb05176a4b Better implementation for getItemCount on FlatList (#26164) ...

Summary:
Flatlist's `getItemCount` function is frequently called internally by VirtualizedList.
As with other functions, we can remove unnecessary operations with the `numColumns` value.
This makes it much more efficient.

## Changelog
[Internal] [Changed] - Better implementation for getItemCount on FlatList
Pull Request resolved: https://github.com/facebook/react-native/pull/26164

Test Plan: Not required

Differential Revision: D16989335

Pulled By: sahrens

fbshipit-source-id: b0075b2c2aeb9b9d7644c8bb18702a7cca8a4dce

2019-08-23 11:48:59 -07:00

..

__flowtests__

xplat/js/react-native-github

2019-08-09 10:11:15 -07:00

__tests__

fix SectionList scrollToLocation and prevent regressions (#25997)

2019-08-13 07:52:54 -07:00

FillRateHelper.js

Manual fixes for xplat/js/react-native-github

2019-08-09 10:11:15 -07:00

FlatList.js

Better implementation for getItemCount on FlatList (#26164)

2019-08-23 11:48:59 -07:00

SectionList.js

fix SectionList scrollToLocation and prevent regressions (#25997)

2019-08-13 07:52:54 -07:00

ViewabilityHelper.js

Fixes 'Invalid render range' crash (#22847)

2019-01-21 01:58:54 -08:00

VirtualizedList.js

improve VirtualizedList error message (#25973)

2019-08-12 04:34:25 -07:00

VirtualizedSectionList.js

fix SectionList scrollToLocation and prevent regressions (#25997)

2019-08-13 07:52:54 -07:00

VirtualizeUtils.js

Use invariant instead of fbjs/lib/invariant

2018-12-03 00:07:02 -08:00