strlen

strlen(str) returns the number of grapheme clusters in str.

Signature

strlen(str string) number

Example

Validate that a required token variable has a minimum length before attempting a deployment:

variable "deploy_token" {
  description = "API token for the deployment service"
  type        = string
}

task "deploy" {
  description = "Deploy the application"
  condition   = strlen(var.deploy_token) >= 32
  commands    = ["./bin/deploy --token ${var.deploy_token}"]
}

When deploy_token is shorter than 32 characters, the task is skipped with a condition note instead of failing with an authentication error downstream.

Notes

strlen counts grapheme clusters, not bytes or code points. A multi-byte character or combined character sequence counts as one.
For byte length, there is no dedicated function. Most use cases care about character count.

Overview

String

Number

Collection

Encoding

Crypto

Filesystem

Datetime

Regex

UUID

Conversion

Environment

Runtime

Signature

Example

Notes

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​Example

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Signature

Example

Notes