docs-v2/content/flux/v0.x/stdlib/strings/strlen.md

title	description	aliases	menu	weight	introduced
strings.strlen() function	The strings.strlen() function returns the length of a string. String length is determined by the number of UTF code points a string contains.	/influxdb/v2.0/reference/flux/functions/strings/strlen/ /influxdb/v2.0/reference/flux/stdlib/strings/strlen/ /influxdb/cloud/reference/flux/stdlib/strings/strlen/	flux_0_x_ref name parent strings.strlen strings	301	0.35.0

The strings.strlen() function returns the length of a string. String length is determined by the number of UTF code points a string contains.

Output data type: Integer

import "strings"

strings.strlen(v: "apple")

// returns 5

Parameters

v

The string value to measure.

Examples

Filter based on string value length

import "strings"

data
  |> filter(fn: (r) => strings.strlen(v: r._measurement) <= 4)

Store the length of string values

import "strings"

data
    |> map(fn: (r) => ({r with length: strings.strlen(v: r._value)}))