From a7932209434c52c44f684ff4e42bef0cdfbd1249 Mon Sep 17 00:00:00 2001
From: Dominic Lee <34794189+dominictwlee@users.noreply.github.com>
Date: Sat, 4 May 2019 18:00:22 +0100
Subject: [PATCH] Add y0 data accessor to datable components (#35188)

---
 types/victory/index.d.ts        | 7 +++++++
 types/victory/victory-tests.tsx | 1 +
 2 files changed, 8 insertions(+)

diff --git a/types/victory/index.d.ts b/types/victory/index.d.ts
index 8131c760c9..2f57c5fff2 100644
--- a/types/victory/index.d.ts
+++ b/types/victory/index.d.ts
@@ -1087,6 +1087,13 @@ declare module "victory" {
      * @default "y"
      */
     y?: DataGetterPropType;
+    /**
+     * Use y0 data accessor prop to determine how the component defines the baseline y0 data.
+     * This prop is useful for defining custom baselines for components like VictoryBar or VictoryArea.
+     * This prop may be given in a variety of formats.
+     * @example 'last_quarter_profit', () => 10, 1, 'employees.salary', ["employees", "salary"]
+     */
+    y0?: DataGetterPropType;
   }
 
   // Common labable interface
diff --git a/types/victory/victory-tests.tsx b/types/victory/victory-tests.tsx
index 1d45fa49fd..6d8152361e 100644
--- a/types/victory/victory-tests.tsx
+++ b/types/victory/victory-tests.tsx
@@ -487,6 +487,7 @@ test = (
         { y: 6, x: 'B' },
         { y: 7, x: 'C' },
       ]}
+      y0={(d) => d.y - 1}
     />
   </VictoryChart>
 );