arrayIndexOf | Itential

The arrayIndexOf task returns the first index (position) at which a given element can be found in the array. The task returns -1 if the element is not found.

Potential use case

Suppose you have a list of email addresses and want to determine if an email record is listed in the correct department. The arrayIndexOf task checks whether the email exists and returns the index position where it occurs. If the email is not found, it returns -1.

Properties

Incoming	Type	Description
`arr`	Array	Required. The array to search.
`searchElement`	Any	Required. The element to search for.
`fromIndex`	Number	Optional. The index position to start the search. Defaults to `0`.

Outgoing	Type	Description
`index`	Number	The position of the element in `arr`. Returns `-1` if not found.

Example

In this example:

The arr variable is statically set to ["Apple","Pear","Banana"].
The searchElement is Banana.
The fromIndex defaults to 0.
The index result returns 2, indicating that Banana is at index position two in the array.

Array indexing is zero-based: the first element is at position 0, the second at 1, and so on.