For AI agents: the complete documentation index is available at /hclapi/llms.txt, the full documentation bundle is available at /hclapi/llms-full.txt, and this page is available as Markdown at /hclapi/docs/manifest/functions/strings/join.md.
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    join

    Concatenates elements in a list of strings using a separator.

    Signature

    join(separator: string, list: list(string)) -> string

    Parameters

    ParameterTypeRequiredDescription
    separator, liststring, list(string)yesSeparator and values

    Return value

    Returns the documented result for the function signature.

    Example

    respond { status = 200, body = { key = join(":", ["GET", ctx.request.path.id, "COMPLETED"]) } }