Nóta
Teastaíonn údarú chun rochtain a fháil ar an leathanach seo. Is féidir leat triail a bhaint as shíniú isteach nó eolairí a athrú.
Teastaíonn údarú chun rochtain a fháil ar an leathanach seo. Is féidir leat triail a bhaint as eolairí a athrú.
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