upper

Function

  upper — convert a string to upper case

Synopsis

upper(s: string) -> string

Description

The upper function converts all lower case Unicode characters in s to upper case and returns the result.

Examples

echo '"Zed"' | zq -z 'yield upper(this)' -

=>

"ZED"

Slices can be used to uppercase a subset of a string as well.

echo '"zed"' |
  zq -z 'func upper_first_char(str): (
           upper(str[0:1]) + str[1:]
         )
         yield upper_first_char(this)
  ' -

=>

"Zed"