1. September 12-14, 2018
Raleigh, NC

2. Informer Scripting
Andrew Morovati
Chief Solutions Architect
Entrinsik

3. Scripting in Informer Javascript: Calculated Columns Power Script
Saved Functions

4. Javascript Not Java Extremely lenient Widely used
Server and browser side

5. Web Resources https://www.w3schools.com/js/ - basic tutorial
- another tutorial, covers less detail and more concepts
- online practice area

6. Javascript Types String Number Date boolean: Array falsy: Object {
name: ‘Andrew’,
‘Hello World’
age: 102,
Number
birthDate: new Date(‘1916’) 23 }
Date
boolean:
new Date(‘ ’)
true, false
Array
falsy:
[2,3,4,0]
false, 0, ‘’, “”, null, undefined, NaN
Object

7. Embedded Helper Libraries
MomentJS - makes dates easier
var momentDate = moment({date column});
Lodash (_) - lots of utilities
var obj = _.assign({},’order.amount’,23.98);

8. Calculated Columns Defines a column in a dataset no return statement
no assignment

9. Power Script Flow Step Act on the row
May assign or reassign column values
May store values in an accumulation area
May delete a row from the data

10. Power Script Elements $record is the row
$record.firstName = ‘Greg’;
$local is a place to store values
$local.totalPrice += $record.price;
$omit() removes the row
if($record.amt > 0) {
$omit(); }

11. Flush Flow Step
Allow all rows to flow through the previous flow steps before proceeding.
Then if you accumulated values in $local, you can use those for more columns.
Processing intensive, so be careful.

12. Saved Functions Can do anything that power script can do
Simplifies scripts for less savvy designers
Can be used to manipulate the entire row of data
Can be tweaked at a later time if can be made more efficient.
One saved function can return a whole library of utilities

13. Example - Student Transactional Data Analysis

14. QUESTIONS?