Function: countElements()

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Syntax

countElements(list)

Examples

countElements([1,2,"many"])

Returns the number of elements in this list, 3

countElements($list)

Returns 3 since this list has the value [1,2,"many"]

countElements(in)

Returns the number of records being read from the 'in' pipe during the current stream processing cycle. This can be useful when deciding whether or not to read values from a pipe, for instance when using calculate streams.

countElements(in.AnyFieldName)

Also returns the number of records being read from the 'in' pipe, if AnyFieldName is an attribute that exists on the stream being read from.

countElements(lookupPipe)

Returns the number of rows in the Pipe referenced by lookupPipe.

$userArray = split(in.users,","), $numUsers = countElements($userArray)

in.users is a list of user names separated by commas. The split() function converts this into an Array and countElements() returns the number of users.

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