This operation adds a new element to the end of array.
fruits = ['Mango', 'Banana', 'Annona', 'Grape'];
The following expression adds an 'Orange'
string to the the of the array:
value followed by the +
operation is treated as string
as was told in introduction section
Adding multiple items to the array by chaining them:
You can also add array item dynamically by using nested expression:
provided externally as argument