SDK
SDK Javascript v7.x
2

bitcount #

Counts the number of set bits (population counting) in a string.

[Redis documentation]

Arguments #

bitcount(key, [options]);

ArgumentsTypeDescription
key
string
Key
options
object
Optional query arguments

options #

The options arguments can contain the following option properties:

PropertyType (default)Description
end
integer
Count ends at the provided offset
queuable
boolean (true)
If true, queues the request during downtime, until connected to Kuzzle again
start
integer
Count starts at the provided offset
timeout
number

(-1)
Time (in ms) during which a request will still be waited to be resolved. Set it -1 if you want to wait indefinitely
triggerEvents
boolean

(false)
If set to true, will trigger events even if using Embeded SDK. You should always ensure that your events/pipes does not create an infinite loop.
Available since Kuzzle 2.31.0

Resolve #

Resolves to the number of set bits.

Usage #

try {
  await kuzzle.ms.set('key', 'foobar');
  // Prints: 26
  console.log(await kuzzle.ms.bitcount('key'));
  // Prints: 4
  console.log(await kuzzle.ms.bitcount('key', {start: 0, end: 0}));
} catch (error) {
  console.error(error.message);
}