bitcount

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

[Redis documentation]

Arguments

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bitcount(key, [options]);

Arguments Type Description
key
string
Key
options
object
Optional query arguments

options

The options arguments can contain the following option properties:

Property Type (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

Resolve

Resolves to the number of set bits.

Usage

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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);
}