SDK Javascript v5.x

# zcount

Returns the number of elements held by a sorted set with a score between the provided min and max values.

By default, the provided min and max values are inclusive. This behavior can be changed using the syntax described in the Redis ZRANGEBYSCORE documentation.

[Redis documentation]

# zcount(key, min, max, [options], callback)

Arguments Type Description
key string Key identifier
min int Minimum score (inclusive by default)
max int Maximum score (inclusive by default)
options JSON Object Optional parameters
callback function Callback

# Options

Option Type Description Default
queuable boolean Make this request queuable or not true

# Callback Response

Returns an integer containing the number of elements in the provided score range.

# Usage

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// Using callbacks (NodeJS or Web Browser)
kuzzle.memoryStorage.zcount('key', 2, 3, function (err, count) {
  // callback called once the action has completed
// Using promises (NodeJS only)
kuzzle.memoryStorage.zcountPromise('key', 2, 3)
  .then(count => {
    // resolved once the action has completed

Callback response:

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