Menu
Caution
Grafana Alloy is the new name for our distribution of the OTel collector. Grafana Agent has been deprecated and is in Long-Term Support (LTS) through October 31, 2025. Grafana Agent will reach an End-of-Life (EOL) on November 1, 2025. Read more about why we recommend migrating to Grafana Alloy.
Open source
join
join
all items in an array into a string, using a character as separator.
river
join(list, separator)
Examples
river
> join(["foo", "bar", "baz"], "-")
"foo-bar-baz"
> join(["foo", "bar", "baz"], ", ")
"foo, bar, baz"
> join(["foo"], ", ")
"foo"
Was this page helpful?
Related documentation
Related resources from Grafana Labs
Additional helpful documentation, links, and articles:
Video
Optimizing Kubernetes Operations with Grafana Cloud
Join us for an insightful Grafana Cloud webinar dedicated to advanced Kubernetes monitoring techniques.
Video
Incident management with Grafana IRM & SLOS in Grafana Cloud
This webinar shows you how to prioritize critical resources through service level objective(SLO)-driven incident response and management (IRM).
Video
Intro to Application and Frontend Observability with Grafana Cloud
In this webinar, we will introduce you to two of our latest opinionated solutions in Grafana Cloud that resolve issues faster with unified observability.