first()

Supported list types

This function returns the first element in the number list l, or null if l is an empty list.

Syntax

first(number list l) #Output: Number

Parser expression	Description
first([3, 2, 1, 0])	This example returns the number 3, which is the first element of the number list l.

Parameters used in this function

Parameter	Input (data type)	Description
`xxx`	DATA TYPE	Parameter description.

This function returns a NUMBER

This function returns the first element in the text list l, or null if l is an empty list.

Syntax

first(string list l) #Output: Text

Parser expression	Description
first(["blue", "red", "green"])	This example returns the text: `"blue"`, which is the first element of the text list l.

Parameters used in this function

Parameter	Input (data type)	Description
`xxx`	DATA TYPE	Parameter description.

This function returns a TEXT

The function returns an issue list with the first element in issue list l, or an empty list if l is an empty list.

Syntax

first(issue list l) #Output: Issue list

Parameters used in this function

Parameter	Input (data type)	Description
`xxx`	DATA TYPE	Parameter description.

This function returns an ISSUE LIST