From 057577dcc563781af81a9ae260c07498fd0f9e61 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Torkel=20=C3=96degaard?= <torkel@grafana.com>
Date: Tue, 16 Apr 2019 10:39:12 +0200
Subject: [PATCH] Heatmap: Fixed auto decimals when bucket name is not number
 but contains dots, fixes #13019 (#16609)

---
 public/app/core/specs/ticks.test.ts | 9 +++++++++
 public/app/core/utils/ticks.ts      | 4 ++++
 2 files changed, 13 insertions(+)

diff --git a/public/app/core/specs/ticks.test.ts b/public/app/core/specs/ticks.test.ts
index 73d0e96cbd2..51713625745 100644
--- a/public/app/core/specs/ticks.test.ts
+++ b/public/app/core/specs/ticks.test.ts
@@ -22,4 +22,13 @@ describe('ticks', () => {
       expect(dec.scaledDecimals).toBe(3);
     });
   });
+
+  describe('getStringPrecision()', () => {
+    it('"3.12" should return 2', () => {
+      expect(ticks.getStringPrecision('3.12')).toBe(2);
+    });
+    it('"asd" should return 0', () => {
+      expect(ticks.getStringPrecision('asd.asd')).toBe(0);
+    });
+  });
 });
diff --git a/public/app/core/utils/ticks.ts b/public/app/core/utils/ticks.ts
index 7efe6123a5e..81380269a99 100644
--- a/public/app/core/utils/ticks.ts
+++ b/public/app/core/utils/ticks.ts
@@ -201,6 +201,10 @@ export function getPrecision(num: number): number {
  * Get decimal precision of number stored as a string ("3.14" => 2)
  */
 export function getStringPrecision(num: string): number {
+  if (isNaN((num as unknown) as number)) {
+    return 0;
+  }
+
   const dotIndex = num.indexOf('.');
   if (dotIndex === -1) {
     return 0;