hexists #

Checks if a field exists in a hash.

hexists(key, field, [options], callback) #

Arguments	Type	Description
`key`	string	Key identifier
`field`	string	Field name
`options`	JSON Object	Optional parameters
`callback`	function	Callback

Options #

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

Callback Response #

A boolean value specifying if the field exists or not.

Usage #

// Using callbacks (NodeJS or Web Browser)
kuzzle.memoryStorage.hexists('key', 'field1', function (err, exists) {
  // callback called once the action has completed
});
// Using promises (NodeJS only)
kuzzle.memoryStorage.hexistsPromise('key', 'field1')
  .then(exists => {
    // resolved once the action has completed
  });

Callback response:

true

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