SDK
SDK Javascript v5.x
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bitcount #

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

[Redis documentation]


bitcount(key, [options], callback) #

ArgumentsTypeDescription
keystringKey identifier
optionsJSON ObjectOptional parameters
callbackfunctionCallback

Options #

OptionTypeDescriptionDefault
endintEnding offset-1
queuablebooleanMake this request queuable or nottrue
startintStarting offset0

Callback Response #

Return an integer containing the count of set bits.

Usage #

// Using callbacks (NodeJS or Web Browser)
kuzzle.memoryStorage.bitcount('key', function (err, count) {
  // callback called once the action has completed
});
// Using promises (NodeJS only)
kuzzle.memoryStorage.bitcountPromise('key')
  .then(count => {
    // resolved once the action has completed
  });

Callback response:

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