Using of Conditions in JavaScript/ECMAScript 262 Edition 11

Setup, Configuration and Use Scripts & Rules
, , ,
1

Hi,
im searching the documentation and the community for a hint how to specify a condition like a trigger in JavaScript/ECMAScript 262 Edition 11.

How would be the syntax to use the numericState of the Item (victron_output_potential) as condition for the rule?

In more complex examples i would like to spare some if clauses.

Thanks for help

rules.JSRule({
  name: "BatterieUndervoltage",
  description: "Batterie Undervoltage",
  id: "BatterieUndervoltage",
  tags: ["Solar"],
  triggers: [triggers.ItemStateChangeTrigger("victron_output_potential")],
 //conditions: [conditions.ItemStateCondition()],
  execute: (event) => {
       var systemvoltage =items.getItem("victron_output_potential").numericState;
      if (systemvoltage <= 39.0 & items.getItem("dpm_setOutput").state=="ON")
      {
        items.getItem("dpm_setOutput").sendCommand("OFF");
      }
  }
});
  • Platform information:
    • Hardware: Intel i-3-9350KF / x64 /64GB DDR4 ECC/990Evo ZFS Mirror
    • OS: Proxmox 8.3.5
    • Virtual Hardware: 4Cores / x64 / 8GB / 64GB scsi
    • Virtual OS: Debian 12.8
    • Java Runtime Environment: Zulu17.56+15-CA
    • openHAB version: 4.3.3 Release Build
2

You can add an additional condition (not trigger) to your rule.
Go to your rule and scroll down to

But only if

There you can add your condition

3

Just have to remember that the But only if are AND conditions and not OR conditions.

4

Thanks for help, but this not what i am looking for.
I search the syntax for JS/ECMAScript262 to do this.

5

I don’t believe you can do this with your rule. The RuleConfig object that is passed to JSRule does not have a condition property.

You loose nothing (and gain potential complex conditions) by simply having your conditional logic to the beginning of your script.

6

Thanks for the answers. I hoped that i missed somthing in the documentation.