HTML RESULT 
{data 'myArray1'}
  [1,2,3]
{/data}
{myArray1}
  Occurence {$myArray1} <br>
@else@
  No occurences
{/myArray1}
Occurence 1
Occurence 2
Occurence 3 
{data 'myArray2'}
  []
{/data}
{myArray2}
  Occurence {$myArray2} <br>
@else@
  Nothing to see here
{/myArray2}
Nothing to see here