[GitHub] [incubator-echarts] pissang opened a new issue #11829: min/max callback of yAxis support return null

[GitBox <gi...@apache.org>]

pissang opened a new issue #11829: min/max callback of yAxis support return null
URL: https://github.com/apache/incubator-echarts/issues/11829
 
 
   ### What problem does this feature solve?
   Currently if min/max callback return null, the behaviour is unexpected.
   
   We can still use the auto calculated max value if the callback returns null
   
   ### What does the proposed API look like?
   ```js
   max: function (val) {
     return val > 0 ? val : null;
   }
   ```
   
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