improve showForNullSeries yaxis option

Author: junedchhipa

src/modules/axes/AxesUtils.js

@@ -146,7 +146,7 @@ export default class AxesUtils {
       !w.config.yaxis[index].show ||
       (!w.config.yaxis[index].showForNullSeries &&
         coreUtils.isSeriesNull(index) &&
-        !w.globals.collapsedSeriesIndices.indexOf(index) === -1)
+        w.globals.collapsedSeriesIndices.indexOf(index) === -1)
     )
   }
 

src/modules/settings/Options.js

@@ -8,7 +8,7 @@ export default class Options {
     this.yAxis = {
       show: true,
       showAlways: false,
-      showForNullSeries: false,
+      showForNullSeries: true,
       seriesName: undefined,
       opposite: false,
       reversed: false,
@@ -214,6 +214,7 @@ export default class Options {
       fontSize: '13px',
       fontFamily: undefined,
       fontWeight: 400,
+      appendTo: '.apexcharts-annotations',
       backgroundColor: 'transparent',
       borderColor: '#c2c2c2',
       borderRadius: 0,
@@ -230,6 +231,7 @@ export default class Options {
       type: 'rect',
       width: '100%', // accepts percentage as well as fixed numbers
       height: 50,
+      appendTo: '.apexcharts-annotations',
       backgroundColor: '#fff',
       opacity: 1,
       borderWidth: 0,