zrevrank

Returns the position of an element in a sorted set, with scores in descending order. The index returned is 0-based (the lowest score member has an index of 0).

[Redis documentation]


zrevrank(key, member, [options], callback)

Arguments Type Description
key string Key identifier
member string Member of the sorted set
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 member's position in the sorted set.

Usage

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// Using callbacks (NodeJS or Web Browser)
kuzzle.memoryStorage.zrevrank('key', 'foo', function (err, position) {
  // callback called once the action has completed
});

// Using promises (NodeJS only)
kuzzle.memoryStorage.zrevrankPromise('key', 'foo')
  .then(position => {
    // resolved once the action has completed
  });

Callback response:

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