zlexcount #

Counts elements in a sorted set where all members have equal score, using lexicographical ordering.

[Redis documentation]

Arguments #

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zlexcount(key, min, max, [options]);

Arguments	Type	Description
key	string	Sorted set key
min	string	Minimum range value
max	string	Maximum range value
options	object	Optional query arguments

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

options #

The options arguments can contain the following option properties:

Property	Type (default)	Description
queuable	boolean (true)	If true, queues the request during downtime, until connected to Kuzzle again

Resolve #

Resolves to the number of elements in the provided range.

Usage #

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try {
  await kuzzle.ms.zadd('ssetfoo', [
    {member: 'foo', score: '0'},
    {member: 'bar', score: '0'},
    {member: 'baz', score: '0'}
  ]);
  // Prints: 2
  // Lexicographically counts elements with a maximum value of 'f' (excluded),
  // without a minimum value
  console.log(await kuzzle.ms.zlexcount('ssetfoo', '-', '(f'));
} catch (error) {
  console.error(error.message);
}