iot.exists
Returns whether or not a measurement is available.
Input Parameters
| Name | Type | Required | Description |
|---|---|---|---|
| name | Text | Yes | Target measurement name |
| [deviceId] | Text | No | Source IoT device identifier |
Returns
Type: Boolean
Returns true if measurement value exists. Otherwise, false is returned.
Examples
// check if bpm measurement value is available
if (iot.exists("bpm") === true)
debug.log("Measurement exists.");
Remarks
Use this function when you need to test if a measurement value is available.