From 1ebf446de5292befe2c817d6852cf3a7b4fe9352 Mon Sep 17 00:00:00 2001
From: David Pett <me@davidpett.com>
Date: Wed, 10 Apr 2019 08:05:57 -0500
Subject: [PATCH 1/2] adding fontVariant to TextStyleIOS

according to https://facebook.github.io/react-native/docs/text.html#style
>fontVariant: array of enum('small-caps', 'oldstyle-nums', 'lining-nums', 'tabular-nums', 'proportional-nums') (iOS)

I added support by first creating a union type for FontVariant with the enum values, then adding fontVariant as an optional property that accepts an array of type FontVariant
---
 types/react-native/index.d.ts | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/types/react-native/index.d.ts b/types/react-native/index.d.ts
index 99998e9241..df8c1e7695 100644
--- a/types/react-native/index.d.ts
+++ b/types/react-native/index.d.ts
@@ -757,7 +757,9 @@ export interface LayoutChangeEvent {
     };
 }
 
+export type FontVariant = 'small-caps' | 'oldstyle-nums' | 'lining-nums' | 'tabular-nums' | 'proportional-nums';
 export interface TextStyleIOS extends ViewStyle {
+    fontVariant?: FontVariant[];
     letterSpacing?: number;
     textDecorationColor?: string;
     textDecorationStyle?: "solid" | "double" | "dotted" | "dashed";

From 7b884f7562c343e85d3c0dcb7686410fcc4fb20c Mon Sep 17 00:00:00 2001
From: David Pett <me@davidpett.com>
Date: Wed, 10 Apr 2019 08:34:11 -0500
Subject: [PATCH 2/2] added tests for fontVariant

---
 types/react-native/test/index.tsx | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/types/react-native/test/index.tsx b/types/react-native/test/index.tsx
index 7de9b96374..d6f55c3f4d 100644
--- a/types/react-native/test/index.tsx
+++ b/types/react-native/test/index.tsx
@@ -178,10 +178,14 @@ const textStyle: StyleProp<TextStyle> = {
 const imageStyle: StyleProp<ImageStyle> = {
     resizeMode: "contain",
 };
+const fontVariantStyle: StyleProp<TextStyle> = {
+    fontVariant: ['tabular-nums']
+}
 
 const viewProperty = StyleSheet.flatten(viewStyle).backgroundColor;
 const textProperty = StyleSheet.flatten(textStyle).fontSize;
 const imageProperty = StyleSheet.flatten(imageStyle).resizeMode;
+const fontVariantProperty = StyleSheet.flatten(fontVariantStyle).fontVariant;
 
 const s = StyleSheet.create({
     shouldWork: {