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.

*Output data type: Integer*

import "strings"
strings.strlen(v: "apple")
// returns 5

Parameters

v

The string value to measure.

*Data type: String*

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)
    })
  )