lower()

Converts a string to lowercase. If the argument is null, it returns null. If this receives a value other than the string, it evaluates that value after converting it to a string.

Syntax

lower(STR_EXPR)
Required Parameters
STR_EXPR
String expression

Usage

json "{}" | eval str=lower("Hello World") => "hello world"
json "{}" | eval str=lower(1234) => "1234"
json "{}" | eval str=lower(null) => null