Documentation

array.concat() function

array.concat() is experimental and subject to change at any time.

array.concat() appends two arrays and returns a new array.

Deprecated

Experimental array.concat() is deprecated in favor of array.concat().

Neither input array is mutated and a new array is returned.

Function type signature
(<-arr: [A], v: [A]) => [A]

For more information, see Function type signatures.

Parameters

arr

First array. Default is the piped-forward array (<-).

v

(Required) Array to append to the first array.

Examples

Merge two arrays

import "experimental/array"

a = [1, 2, 3]
b = [4, 5, 6]

c = a |> array.concat(v: b)

// Returns [1, 2, 3, 4, 5, 6]
// Output each value in the array as a row in a table
array.from(rows: c |> array.map(fn: (x) => ({_value: x})))

View example output


Was this page helpful?

Thank you for your feedback!


New in InfluxDB 3.7

Key enhancements in InfluxDB 3.7 and the InfluxDB 3 Explorer 1.5.

See the Blog Post

InfluxDB 3.7 is now available for both Core and Enterprise, landing alongside version 1.5 of the InfluxDB 3 Explorer UI. This release focuses on giving developers faster visibility into what their system is doing with one-click monitoring, a streamlined installation pathway, and broader updates that simplify day-to-day operations.

For more information, check out:

InfluxDB Docker latest tag changing to InfluxDB 3 Core

On February 3, 2026, the latest tag for InfluxDB Docker images will point to InfluxDB 3 Core. To avoid unexpected upgrades, use specific version tags in your Docker deployments.

If using Docker to install and run InfluxDB, the latest tag will point to InfluxDB 3 Core. To avoid unexpected upgrades, use specific version tags in your Docker deployments. For example, if using Docker to run InfluxDB v2, replace the latest version tag with a specific version tag in your Docker pull command–for example:

docker pull influxdb:2