Specify custom behavior on mouseenter event.
<ANY
  ng-mouseenter="expression">
...
</ANY>
      | Param | Type | Details | 
|---|---|---|
| ngMouseenter | expression | 
         Expression to evaluate upon
mouseenter. (Event object is available as   | 
    
<button ng-mouseenter="count = count + 1" ng-init="count=0">
  Increment (when mouse enters)
</button>
count: {{count}}