{
  "schema_version": 2,
  "id": "commands/arnext",
  "title": "ARNEXT",
  "url": "https://redis.io/docs/latest/commands/arnext/",
  "summary": "Returns the next index ARINSERT would use.",
  "since": "8.8.0",
  "tags": [
    "docs",
    "develop",
    "stack",
    "oss",
    "rs",
    "rc",
    "oss",
    "kubernetes",
    "clients"
  ],
  "last_updated": "2026-07-24T11:07:00+02:00",
  "page_type": "content",
  "content_hash": "effc8ebc2e78e1d504276e62fa0e280c7faaa5f5de8d27c9a133c593fc8a7b59",
  "sections": [
    {
      "id": "overview",
      "title": "Overview",
      "role": "overview",
      "text": "Returns the next index ARINSERT would use."
    },
    {
      "id": "required-arguments",
      "title": "Required arguments",
      "role": "content",
      "text": "<details open><summary><code>key</code></summary>\n\nThe name of the key that holds the array.\n\n</details>"
    },
    {
      "id": "examples",
      "title": "Examples",
      "role": "example",
      "text": "redis> ARINSERT myarray \"a\"\n(integer) 0\nredis> ARINSERT myarray \"b\"\n(integer) 1\nredis> ARNEXT myarray\n(integer) 2"
    },
    {
      "id": "redis-software-and-redis-cloud-compatibility",
      "title": "Redis Software and Redis Cloud compatibility",
      "role": "content",
      "text": "| Redis<br />Software | Redis<br />Cloud | <span style=\"min-width: 9em; display: table-cell\">Notes</span> |\n|:----------------------|:-----------------|:------|\n| <span title=\"Not supported\">&#x274c; Standard</span><br /><span title=\"Not supported\"><nobr>&#x274c; Active-Active</nobr></span> | <span title=\"Not supported\">&#x274c; Standard</span><br /><span title=\"Not supported\"><nobr>&#x274c; Active-Active</nobr></span> |  |"
    },
    {
      "id": "return-information",
      "title": "Return information",
      "role": "returns",
      "text": "**RESP2:**\n\nOne of the following:\n* [Integer reply](../../develop/reference/protocol-spec#integers): The next index ARINSERT would use. Returns 0 for missing keys or when no insert happened yet.\n* [Nil reply](../../develop/reference/protocol-spec#null-bulk-strings): Null when the insertion cursor is exhausted (next insert would overflow).\n\n**RESP3:**\n\nOne of the following:\n* [Integer reply](../../develop/reference/protocol-spec#integers): The next index ARINSERT would use. Returns 0 for missing keys or when no insert happened yet.\n* [Null reply](../../develop/reference/protocol-spec#nulls): Null when the insertion cursor is exhausted (next insert would overflow)."
    }
  ],
  "examples": []
}