incrbyfloat #
Increments the number stored at key
by the provided float value. If the key does not exist, it is set to 0 before performing the operation.
incrbyfloat(key, value, [options], [callback]) #
Arguments | Type | Description |
---|---|---|
key | string | Key identifier |
value | double | Increment value |
options | JSON Object | Optional parameters |
callback | function | Callback |
Options #
Option | Type | Description | Default |
---|---|---|---|
queuable | boolean | Make this request queuable or not | true |
Return Value #
Returns the MemoryStorage
object to allow chaining.
Callback Response #
Returns a floating point number that contains the updated key value.
Usage #
// Using callbacks (NodeJS or Web Browser)
kuzzle.memoryStorage.incrbyfloat('key', -3.14159, function (err, value) {
// callback called once the action has completed
});
// Using promises (NodeJS only)
kuzzle.memoryStorage.incrbyfloatPromise('key', -3.14159)
.then(value => {
// resolved once the action has completed
});
Callback response:
38.85841
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