SETBIT key offset value Available since: Redis Open Source 2.2.0 Time complexity: O(1) ACL categories: @write, @bitmap, @slow, Sets or clears the bit at offset in the string value stored at key. The bit is either set or cleared depending on value, which can be either 0 or 1. When key does not exist, a new string value is created. The string is grown to make sure it can hold a bit at offset. The of