Pass number format to tooltip (#9831)

Author: benmccann

src/scales/scale.linearbase.js

@@ -312,6 +312,6 @@ export default class LinearScaleBase extends Scale {
   }
 
   getLabelForValue(value) {
-    return formatNumber(value, this.chart.options.locale);
+    return formatNumber(value, this.chart.options.locale, this.options.ticks.format);
   }
 }

src/scales/scale.logarithmic.js

@@ -146,7 +146,9 @@ export default class LogarithmicScale extends Scale {
 	 * @return {string}
 	 */
   getLabelForValue(value) {
-    return value === undefined ? '0' : formatNumber(value, this.chart.options.locale);
+    return value === undefined
+      ? '0'
+      : formatNumber(value, this.chart.options.locale, this.options.ticks.format);
   }
 
   /**