From fd3b01ac9e0e805e9d884074bc3be919fddd935d Mon Sep 17 00:00:00 2001
From: Adam Laycock <adam@arcath.net>
Date: Fri, 28 Sep 2018 10:48:58 +0100
Subject: [PATCH] tickFormatter is optional

---
 types/recharts/index.d.ts | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/types/recharts/index.d.ts b/types/recharts/index.d.ts
index c334f977d5..45a69e6980 100644
--- a/types/recharts/index.d.ts
+++ b/types/recharts/index.d.ts
@@ -484,7 +484,7 @@ export interface PolarAngleAxisProps extends EventAttributes, Partial<Presentati
     ticks?: PolarAngleAxisTick[];
     stroke?: string;
     orientation?: 'inner' | 'outer';
-    tickFormatter: TickFormatterFunction;
+    tickFormatter?: TickFormatterFunction;
 }
 
 export class PolarAngleAxis extends React.Component<PolarAngleAxisProps> { }
@@ -521,7 +521,7 @@ export interface PolarRadiusAxisProps extends EventAttributes, Partial<Presentat
     axisLine?: boolean | object;
     tick?: boolean | object | React.ReactElement<any> | ContentRenderer<any>;
     stroke?: string;
-    tickFormatter: TickFormatterFunction;
+    tickFormatter?: TickFormatterFunction;
     domain?: [PolarRadiusAxisDomain, PolarRadiusAxisDomain];
     scale?: ScaleType | RechartsFunction;
     allowDataOverflow?: boolean;