The BITCOUNT command in Redis is used to count the number of set bits (bits with a value of 1) in a range of bytes within a key that is stored as a binary string. It is primarily used for bit-level operations on binary data stored in Redis.

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Arguments

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key
string
required

The key to get.

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start
integer

Specify the range of bytes within the binary string to count the set bits. If not provided, it counts set bits in the entire string.

Either specify both start and end or neither.

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end
integer

Specify the range of bytes within the binary string to count the set bits. If not provided, it counts set bits in the entire string.

Either specify both start and end or neither.

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Response

The number of set bits in the specified range.

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