Get a value from an array.
Behaviour: Perform the function on an Array behaviour
Value: Perform the function on a JSON formatted value. When entering a dictionary JSON value, the array will be the list of keys in the dictionary.
First Value: Get the first value in the array. This is the same as selecting index 0.
Value at Index: Get a value from a specified index in an array. Note that the first value would be index 0. Eg. If you have an array with values [cat, pickles, dog], value at index 1 would be 'pickles'.
Last Value: Get the last value in the array. If the array only has one value, it will be the same as selecting the first value.
Outputs a single value of an array.
If you have an array that represents a deck of cards, selecting the first value will get the card on top of the deck.