strings.strlen() function

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

Function type signature
(v: string) => int

For more information, see Function type signatures.



(Required) String value to measure.


Filter based on string value length

import "strings"

    |> filter(fn: (r) => strings.strlen(v: r._value) <= 6)

View example input and output

Store the length of string values

import "strings"

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

View example input and output

Was this page helpful?

Thank you for your feedback!

The future of Flux

Flux is going into maintenance mode. You can continue using it as you currently are without any changes to your code.

Flux is going into maintenance mode and will not be supported in InfluxDB 3.0. This was a decision based on the broad demand for SQL and the continued growth and adoption of InfluxQL. We are continuing to support Flux for users in 1.x and 2.x so you can continue using it with no changes to your code. If you are interested in transitioning to InfluxDB 3.0 and want to future-proof your code, we suggest using InfluxQL.

For information about the future of Flux, see the following: