BITPOS

Find the position of the first set or clear bit (bit with a value of 1 or 0) in a Redis string key.

Arguments

key · str · required

The key to search in.

bit · 0 | 1 · required

The key to store the result of the operation in.

start · int

The index to start searching at.

end · int

The index to stop searching at.

Response

The index of the first occurence of the bit in the string.

Example

redis.setbit("mykey", 7, 1)
redis.setbit("mykey", 8, 1)

assert redis.bitpos("mykey", 1) == 7
assert redis.bitpos("mykey", 0) == 0

# With a range
assert redis.bitpos("mykey", 1, 0, 2) == 0
assert redis.bitpos("mykey", 1, 2, 3) == -1