An array is a list of values grouped into a single value. An array may be of variable length; in one record the array field may contain two elements, while in the next record, it contains six elements.
Arrays must be wrapped in square brackets; parentheses are not supported.
The maximum size of an Object is determined by the maximum size of a cell's value in the data grid. For more information, see Data Grid Panel.
["123","456","789"] ["Hello","Goodbye"] ["abc","2"] ["abc","3"] ["A",["B","C"],"D"]
Ragged arrays: The above arrays are collectively a set of ragged arrays. The number of elements in each array varies. When arrays are ragged, some array functions may return null or empty values.
Nested arrays: The last example above is a nested array, in which one array is nested inside of another.