Originally from earlduque/ServiceNow-Developer-Training. Thanks Earl!

Cheat Sheet & Quick Reference #

Keyboard Shortcuts in Studio #

(For Windows: Use Ctrl key instead of Cmd)

Action Shortcut
Help Cmd + H
Toggle Full Screen Ctrl + M
Start Searching Cmd + F
Find Next Cmd + G
Find Previous Cmd + Shift + G
Replace Cmd + E
Replace All Cmd + ;
Toggle Comment Cmd + /
Scripting Assistance Ctrl + Space
Show Description Cmd + J

Debugger Shortcuts #

Action Shortcut
Start Debugger F2
Pause Debugging SHIFT + F2
Resume Script Execution F9
Step over next function call F8
Step into next function call F7
Step out of current function call SHIFT + F8

Common APIs/Code Snippets #

Create a new record in a table #

var grIncident = new GlideRecord('incident');
grIncident.newRecord();
grIncident.short_description = 'Hello from the cheat sheet!';
grIncident.insert();

Get a record by ID #

var grIncident = new GlideRecord('incident');
if (grIncident.get('incidentSysID')) {
// Do something!
gs.log(grIncident.number + ': ' + grIncident.short_description);
}

Count active records using GlideAggregate #

var gaIncCount = new GlideAggregate('incident');
gaIncCount.addQuery('active', 'true');
gaIncCount.addAggregate('COUNT');
gaIncCount.query();

var count = 0; // This will hold the final count
if (gaIncCount.next()) {
count = gaIncCount.getAggregate('COUNT');
}

Convert JS Object to JSON #

var jsonString = JSON.stringify(obj);

Convert a JSON string to JS Object #

var obj = JSON.parse(jsonString);

Look up task records in new state #

var grTask = new GlideRecord('task');
grTask.addQuery('state', '1');
grTask.query();

while (grTask.next()) {
// Do something with each task
}

Add OR conditions to a GlideRecord query #

var grIncident = new GlideRecord('incident');
var qc = grIncident.addQuery('state', '1'); // A or B or C
qc.addOrCondition('state', '2');
qc.addOrCondition('state', '3');
grIncident.query();

while (grIncident.next()) {
// Do something...
}

var grIncident = new GlideRecord('incident');
grIncident.addQuery('priority', '1'); // A and (B or C)
var qc = grIncident.addQuery('state', '1');
gc.addOrCondition('state', '2');
grIncident.query();

while (grIncident.next()) {
// Do something...
}

Commmon GlideSystem methods #

var user = gs.getUser(); // Get current user Object
var userID = gs.getUserID(); // Get current user's ID
var userName = gs.getUserName(); // Get current user's user_name
var groups = gs.getUser().getMyGroups(); // Get current user's groups
var isMember = gs.getUser().isMemberOf(current.getValue('assignment_group')); // Check by GroupID
var isMember = gs.getUser().isMemberOf('Service Desk'); // Check by Group Name
var hasRole = gs.hasRole('itil'); // Determine if current user has 'itil' role

Common AngularJS Directives for using in the HTML Template #

Directive Purpose
ng-model This directive binds an input, select, textarea (or custom form control) to the Angular Scope
ng-repeat Iterate through a data array to e.g. build a list of records or a table
ng-show/ng-hide Evaluate an expression to determine if an element is shown
ng-if Evaluate an expression to determine if an element is shown (removes the element from the DOM, therefore more costly - BUT it will trigger a re-evaluation of the widget code, which can come in handy.)
ng-class Equivalent to the CSS element 'class' - count e.g. be used to assign a CSS class conditionally
ng-change Triggered when the according element changes (e.g. ng.change = "c.myChangeFunction()" )
ng-include Fetches, compiles and includes an external HTML fragment (e.g. Angular template)
watch AngularJS record watcher - e.g. used to do something on the client when value changes on the server

Service Portal Client Side Utilities #

API Purpose
spUtil Client side only utility. Can be used for example to add Info Messages to the page - also required for recrodWatch functionality. See documentation for more functions available
addErrorMessage/addInfoMessage Displays a notification message of different types (requires spUtil to work - e.g. spUtil.addInfoMessage("Your order has been placed") )
recordWatch Requires spUtil . Will watch a specific query on a defined table for updates, if an update happens you can respond to it in real-time.
Usage: spUtil.recordWatch($scope, "incident", "active=true");
rootScope The root scope element will e.g. let you broadcast and event to the rootScope of the page (allows communication between widgets).
Usage: $rootScope.broadcastEvent("myEvent.name", parm1);
console (Browser) Powerful utility available in both client and server. Can be used to "log" debug messages of, for exmaple, the data object

Service Portal Server Side Utilities #

API Purpose
$sp Server side only utility. Can be used, for example, to get parameters from the URL and get the GlideRecord for the current Portal. See documentation for a list of all available functions.
console (Browser) Powerful utility available in both client and server. Can be used to "log" debug messages.

References #

Copied over from ServiceNow Developer Cheat Sheet + Quick Reference brochure. Slight edits have been made. The original document can be found here.