# JSON.ARRPOP Remove and return an element from the index in the array [Examples](#examples) ## Required arguments

key

is key to modify.

index

is position in the array to start popping from. Default is `-1`, meaning the last element. Out-of-range indexes round to their respective array ends. Popping an empty array returns null.

## Optional arguments

path

is JSONPath to specify. Default is root `$`.

## Return `JSON.ARRPOP` returns an [array](https://redis.io/docs/latestdevelop/reference/protocol-spec#resp-arrays) of bulk string replies for each path, each reply is the popped JSON value, or `nil`, if the matching JSON value is not an array. For more information about replies, see [Redis serialization protocol specification](https://redis.io/docs/latest/develop/reference/protocol-spec). ## Examples

Pop a value from an index and insert a new value

Create two headphone products with maximum sound levels. redis> JSON.SET key $ '[{"name":"Healthy headphones","description":"Wireless Bluetooth headphones with noise-cancelling technology","connection":{"wireless":true,"type":"Bluetooth"},"price":99.98,"stock":25,"colors":["black","silver"],"max_level":[60,70,80]},{"name":"Noisy headphones","description":"Wireless Bluetooth headphones with noise-cancelling technology","connection":{"wireless":true,"type":"Bluetooth"},"price":99.98,"stock":25,"colors":["black","silver"],"max_level":[80,90,100,120]}]' OK Get all maximum values for the second product. redis> JSON.GET key $.[1].max_level "[[80,90,100,120]]" Update the `max_level` field of the product: remove an unavailable value and add a newly available value. redis> JSON.ARRPOP key $.[1].max_level 0 1) "80" Get the updated array. redis> JSON.GET key $.[1].max_level "[[90,100,120]]" Now insert a new lowest value. redis> JSON.ARRINSERT key $.[1].max_level 0 85 1) (integer) 4 Get the updated array. redis> JSON.GET key $.[1].max_level "[[85,90,100,120]]"

## See also [`JSON.ARRAPPEND`](https://redis.io/docs/latestcommands/json.arrappend/) | [`JSON.ARRINDEX`](https://redis.io/docs/latestcommands/json.arrindex/) ## Related topics * [RedisJSON](https://redis.io/docs/latest/develop/data-types/json/) * [Index and search JSON documents](https://redis.io/docs/latest/develop/interact/search-and-query/indexing/)