Add TIL Series based on #til stuff on slack and kalai

[jacebenson]

#TIL

• Today I learned that connection_test.do give you this handy measuring tool.
  LinkedIn: https://www.linkedin.com/posts/iamkalai_til-servicenow-activity-6668864912032460800-Biho

  • Source: Woz

• Scheduling from a template. Would've always used a scheduled job/script.
  Link: https://docs.servicenow.com/bundle/geneva-servicenow-platform/page/administer/form_administration/task/t_ScheduleATemplate.html

  • Source: Ashley

• While JSUtil.notNil is awesome, do keep in mind that it does not work for empty object. Use JSUtil.isEmpty for checking objects.

  // Sample:
  gs.print("This does not work for object JSUtil.notNil({}):"+JSUtil.notNil({}));
  gs.print("This works for empty object JSUtil.isEmpty({}):"+JSUtil.isEmpty({}));
  
  var obj = {a:1};
  gs.print("Not a empty object JSUtil.isEmpty(obj):"+JSUtil.isEmpty(obj));

  • Source: Kalai

• You may know that get() function can accept two arguments. When you pass two arguments, the first becomes the column for searching and the second is the value. But you should also know that get() can return multiple records based on the condition passed. So do not write your script under the assumption that get() will return only one record.

  var incident = new GlideRecord('incident');
  if (incident.get('caller_id', gs.getUserID())) { //This returns more than one record
    gs.print(incident.number);
    incident.next(); //You can iterate to next record like a normal gliderecord query
    gs.print(incident.number);
  }

  • Source: Kalai

• report.view event gets triggered by the platform whenever you view a report in ServiceNow. The event is also generated when the report is run via scheduled report.

  • Source: Kalai

• You can rollback fix scripts. Why this isn’t on the form by default and why it is set to do this is beyond me. /shrug.
  Link: https://jace.pro/post/2020-04-23-fix-scripts-can-rollback-now/

  • Source: Jace

• What: GlideElement actually includes most of the String.prototype functions. Thus current.description.toUpperCase() for instance converts description to uppercase.

  • Source: János Szentpáli

• sp_rel_widget_clone holds the relationship from which the widget was cloned.

  • Link: https://www.linkedin.com/posts/iamkalai_til-servicenow-activity-6651407302102405120-IekU
  • Source: Kalai

• If you want to relink your scoped app to a new repo, you have to delete the existing repo link for the app from sys_repo_config table. Deleting the existing link will allow you to use studio to add the new repo link.

  • Link: https://www.linkedin.com/posts/iamkalai_til-servicenow-activity-6649034037983756290-7L2n
  • Source: Kalai

• What: #til : The evil of toString() - Regex strikes back
  Spent few hours tracking this down as Replace method won't support regex for objects. What a fun Friday this was.

  // Simplified code:
  
  var uri = gs.action.getGlideURI()
  var object = uri.toString();
  var string = uri+"";
  
  gs.print(uri);
  //gs.print(object.replace(/sys_scripts/,'')); //throws an error.
  gs.print(string.replace(/sys.scripts/,''));
  
  gs.print(typeof object);
  gs.print(typeof string);

  • Link: https://www.linkedin.com/posts/iamkalai_til-servicenow-activity-6649271537079730176-A9Nm
  • Source: Kalai

• g_user object is not available for client scripts on service portal widget. You can instead use glideUserSession object to retrieve the same info.

  • Link: https://www.linkedin.com/posts/iamkalai_til-servicenow-serviceportal-activity-6649034463000961025-spb3
  • Source: Kalai

[jacebenson]

• How to get a GlideRecord on the right table in one line;
  • GlideRecordUtil().getGR("<table_name>","<sys_id>")
  • Source: chait