string()
string(value) → stringConverts numbers and objects to strings for logging and transmission.
Serialises a value to a string. Objects are converted to their JSON
representation — this is the standard way to prepare a payload for http.req,
mqtt.publish, udp.send or sd.append, and to make objects printable.
The inverse for JSON text is JSON.parse().
Arguments
| Name | Type | Required | Default | Description |
|---|---|---|---|---|
| value | any | yes | — | Number, object or other value to serialise. |
Returns
string
String / JSON representation of the value.
Example
let payload = { batteryVoltage: 14.3, uptime: now() };
http.req("http://myserver.com/url", string(payload), 1000, false);