List.First

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Syntax

List.First(list as list, optional defaultValue as any) as any

About

Returns the first item in the list list, or the optional default value, defaultValue, if the list is empty. If the list is empty and a default value is not specified, the function returns null.

Example 1

Find the first value in the list {1, 2, 3}.

Usage

List.First({1, 2, 3})

Output

1

Example 2

Find the first value in the list {}. If the list is empty, return -1.

Usage

List.First({}, -1)

Output

-1