DECR

DECR key

Available since:

1.0.0

Time complexity:

O(1)

ACL categories:

@write, @string, @fast,

Decrements the number stored at key by one. If the key does not exist, it is set to 0 before performing the operation. An error is returned if the key contains a value of the wrong type or contains a string that can not be represented as integer. This operation is limited to 64 bit signed integers.

See INCR for extra information on increment/decrement operations.

Examples

redis> SET mykey "10"
"OK"
redis> DECR mykey
"OK"
redis> SET mykey "234293482390480948029348230948"
"Hello"
redis> SET mykey "10"
Cannot destructure property 'error' of 'replies[i]' as it is undefined.
redis> DECR mykey
Cannot destructure property 'error' of 'replies[i]' as it is undefined.
redis> SET mykey "234293482390480948029348230948"
Cannot destructure property 'error' of 'replies[i]' as it is undefined.
redis> DECR mykey
Cannot destructure property 'error' of 'replies[i]' as it is undefined.

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