docs-v2/content/v2.0/reference/flux/stdlib/strings/tolower.md

title	description	aliases	menu	weight	related
strings.toLower() function	The strings.toLower() function converts a string to lowercase.	/v2.0/reference/flux/functions/strings/tolower/	v2_0_ref name parent strings.toLower Strings	301	/v2.0/reference/flux/stdlib/strings/totitle /v2.0/reference/flux/stdlib/strings/toupper /v2.0/reference/flux/stdlib/strings/title

The strings.toLower() function converts a string to lowercase.

Output data type: String

import "strings"

strings.toLower(v: "KOALA")

// returns "koala"

Parameters

v

The string value to convert.

Data type: String

Examples

Convert all values of a column to lower case

import "strings"

data
  |> map(fn: (r) => ({
      r with exclamation: strings.toLower(v: r.exclamation)
    })
  )