11. "Add" operation

This operation adds a new element to the end of array.

Let's say we have the following JavaScript array:
fruits = ['Mango', 'Banana', 'Annona', 'Grape'];
The following expression adds an 'Orange' string to the the of the array:
${fruits+Orange}
The 'Orange' value followed by the + operation is treated as string as was told in introduction section.

Adding multiple items to the array by chaining them:
${fruits+Orange+Cherry+Durian}

You can also add array item dynamically by using nested expression:
${fruits+${myDynamicValue}}
The myDynamicValue can be declared as a JavaScript variable or can be provided externally as argument.

Watch a demo