len()
Returns the length of the string. If the argument is null
, it returns 0
, and if it receives a value other than the string, it evaluates the value after converting it to a string.
Syntax
len(STR_EXPR)
Required Parameter
STR_EXPR
- String expression
Usage
json "{}" | eval length=len("sample") => 6
json "{}" | eval length=len(null) => 0
json "{}" | eval length=len(123) => 3
json "{}" | eval length=len(1.2) => 3