How to use "Schedule Once" Part ３

[bonsai]

※Paris version

※I'm sorry for being persistent.

I felt that I could get a rough idea of how to use "Schedule Once" and its features in the thread below.

https://community.servicenow.com/community?id=community_question&sys_id=bac79caedb490d14da1999ead396199b

https://community.servicenow.com/community?id=community_question&sys_id=013f0d66db45c190382a82630596198a

However, there is one part that I still don't understand.

What does "sched.script =" in the code below mean?

I can't figure out what I'm doing here because I can't find a function named "script" in "Schedule Once".

function script(argument){
    //ScheduleJob
    gs.info(argument);
} 
var argument ="Test OK";
var sched = new ScheduleOnce();
sched.script = '('+script+')("'+argument+'");';
sched.schedule();

[Hitoshi Ozawa]

"script" is the name of the function that's defined at the top of the script.

function script(argument){
    //ScheduleJob
    gs.info(argument);
} 

It's really a bad name.  Can rename it as below:

function output2log(argument){
    //ScheduleJob
    gs.info(argument);
} 
var argument ="Test OK";
var sched = new ScheduleOnce();
sched.script = '('+output2log+')("'+argument+'");';
sched.schedule();

[Hitoshi Ozawa]

var sched.script is set to the javascript command to execute. The script can also be written as below without declaring a function.

var argument ="Test OK";
var sched = new ScheduleOnce();
sched.script = 'gs.info("' + argument + '");';
sched.schedule();

Note that the output of the gs.info() is written to "System Log" > "Script Log Statement". The script is just outputting string "Test OK" to the log as can be seen below.

[Hitoshi Ozawa]

As I've answered in another question, the function is often written in Script Include instead of with the script creating ScheduleOnce).

So something like below. 

Script Include:

var ScheduledJobExample = Class.create();
ScheduledJobExample.prototype = {
    initialize: function() {},
    output2log: function(argument) {
        gs.info(argument);
    },
    type: 'ScheduledJobExample'
};

Schedule script:

var argument ="Test OK";
var sched = new ScheduleOnce();
sched.script = "var si = new ScheduledJobExample().output2log('" + argument + "');";
sched.schedule();

Here, sched.script is create a script include class ScheduledJobExample and calls function named "output2log()" with argument defined by variable "argument".

That is, sched.script is just a string with javascript script to execute in the job.

[bonsai]

thank you for answering.
The code for "Schedule Once" is as follows:

   schedule: function() {
      var t = this._getTrigger();
      
      // calc and set time
      var n = parseInt(this.seconds);
      n += parseInt(this.minutes) * 60;
      n += parseInt(this.hours) * 60 * 60;
      n += parseInt(this.days) * 24 * 60 * 60;
      this.time.addSeconds(n);
      t.next_action.setValue( this.time );
      
      t.trigger_type = this.trigger_type;
      gs.print("Scheduling: " + this.label + " for: " + t.next_action.getDisplayValue());
      return t.insert();
   },

var t = this._getTrigger();

In the above code, it seems that the following code of the contents of "Schedule" of the script include is called.

  // call after variables are setup
  _getTrigger: function() {
     var t = new GlideRecord('sys_trigger');
     t.initialize();
     t.name = this.label; 
     t.document = this.document;
     t.document_key = this.document_key;
     t.script = this.script;
     t.job_id = this.job_id;
     if (!gs.nil(this.system_id))
       t.system_id = this.system_id;
     return t;
  },

I found that the above code created a new record in the "sys_trigger" table.

Does "sched.script =" when using "Schedule Once" mean to set the script in the yellow marker part of the image below?

Do you know where to check the results of the schedule you ran?