Increments the integer value of field in the hash stored at key by increment. If key does not exist, a new key holding a hash is created. If field does not exist the value is set to 0 before the operation is set to 0 before the operation is performed.
|key||string||key holding the hash to increment the field of.|
|field||string||field to increment in the hash.|
|increment||number||amount to increment the field by.|
|Type||Resolves with||Rejected when|
|Promise<number>||On success, the promise resolves with the value at field after the increment operation.|