#JavaScript

Post a job Follow
5 Followers · 132 Posts

JavaScript, often abbreviated as JS, is a high-level, interpreted programming language. It is a language which is also characterized as dynamic, weakly typed, prototype-based and multi-paradigm.

Learn more.

Post a job Follow
Question Ronaldo Nascimento · Jul 22, 2025

Does IRIS support JavaScript asynchronous calls (async/await)?

Working on wrapping an IRIS Cache ObjectScript method that runs for a few seconds. Trying to get UI updates to show BEFORE the method runs in an async/await function. But it seems to be running synchronously rather than asynchronously . So my question is does IRIS/ObjectScript CSP pages support futures with JavaScript or does it run all synchronously.

#Caché #InterSystems IRIS #CSP #JavaScript #ObjectScript #UI Development
2
0 136
Question Nezla · Jun 6, 2023

Linking Javascript call from Zen pages

Hi Guys, I'm resending this because I sent on the weekend and looks like it has not been noticed much 

I'm not that familiar in using Javascript in Zen pages, so basically we have a priting utility (app) that requires us to add a bit of JavaScript call to facilitate printing from our Zen pages as below:

So I added XData link pasted the required script, is this the correct way?

#Ensemble #JavaScript #ZEN
2
0 359
Question Michael Davidovich · Apr 10, 2025

Performant SQL For Paging Results (DataTables, Select2, etc.)

Hello,

Our software commonly returns a full result set to the client and we use the DataTables plugin to display table data.  This has worked well, but at datasets grow larger, we are trying to move some of these requests server-side so the server handles the bulk of the work rather than the client.  This has had me scratching my head in so many ways.  

I'm hoping I can get a mix of general best practice advice but also maybe some IRIS specific ideas.

#InterSystems IRIS #InterSystems IRIS for Health #Big Data #Databases #Data Model #JavaScript #SQL
6
0 233
Question Stephane Devin · Dec 14, 2023

Can I extract a JS function body in cos?

I got a problem to resolve, to sum it up I need to extract a function body from a JS file with cos.
I already got the JS code in a string and the function name but I'm kinda stuck as to how to get my function body, I already tried a few things (regEx, counter bracket) but there are comment and strings that block them from functioning. Is there a javascript parser or a good way to do it except by creating a javascript parser?

#Caché #JavaScript #ObjectScript
8
0 593
Question Harshitha · Jul 1, 2025

Is there a way to automatically clear or refresh the JavaScript cache during compilation or deployment in InterSystems IRIS?"

Hi everyone,

I'm working with JavaScript in InterSystems IRIS, specifically in CSP pages. One issue I'm running into during development is that the browser keeps loading the cached version of my JavaScript files, even after I’ve made changes or recompiled the code.
I would have to clear my cache files or browser history for it to reload and work.

Is there a recommended way or best practice in IRIS to automatically clear or bypass the browser cache for JavaScript?

#Caché #InterSystems IRIS for Health #TrakCare #JavaScript
2
1 192
Question Mark Scicluna · Jan 3, 2024

CSP variable interaction with JSP

I wish to retrieve data from a cache table and then chart the results using javascript/chart.js.  I have had numerous iterations of the code attempting to do this (none of which worked) and my latest iteration is shown below.  

<html>
<head>
   <title>Cache Server Page</title>


   <!-- Include the Chart.js library -->
   <script src="chart.umd.min.js"></script>
   
<csp:SQLQUERY NAME='resultSet' P1='A'>
select Value, StatsDate from Stats 
</csp:SQLQUERY>


<script LANGUAGE="JavaScript">
// Initialize arrays to store data
var xValues = [];
var yValues = [];
</script>

#Ensemble #InterSystems IRIS #CSP #JavaScript
8
0 401
Question Brian Schoen · Jan 12, 2024

javascript Date() options

I am trying to pull out something similar to an HL7 date/time stamp in a custom zen page , in a javascript code section.

var d = new Date();

(Fri Jan 12 2024 16:58:30 GMT-0500 (Eastern Standard Time)

but,
var year = d.getFullYear();

d.<formatcmd>  doesn't seem to work.  (d.getmonth, etc.)

Is there and date formatting I can use inside a javascript routine?

#InterSystems IRIS #HL7 #JavaScript
3
0 288
Question Dmitrii Baranov · Feb 26, 2024

JavaScript expressions evaluation

IRIS is known to have a built-in Python bridge and even allows you to write Python server code but what about JavaScript? Let's say I need a JavaScript expression interpreter. What would you recommend as the most effective way to get one? It is highly desirable that the solution does not require administrator privileges and uses in-process communication (I mean not http and not unix-specific interprocess-communication via command line)

#InterSystems IRIS for Health #JavaScript
2
0 227
Question Dan Murt · Jan 3, 2025

CSP Page is catching Hyper event error when trying to call server side method

Hi Community,

I have a CSP page I am developing with the intent of pulling files from an SFTP site and placing them in a folder on the local network.

I am having an issue where the CSP page is catching a JS error. The error in the browser is - A JavaScript exception was caught during execution of HyperEvent: SyntaxError: Unexpected identifier 'downloading'. (However, the unexpected identifier changes after refreshing page, or after removing the Write statement with the work 'downloading' in it.)

I think I have narrowed it down to a piece of the Javascript code - 

#server(..DownloadFiles(document

#Caché #InterSystems IRIS #CSP #JavaScript
9
0 300
Question Ward De Backer · Oct 26, 2022

IRIS Native api for Node.js: all calls synchronous?

Hi,

If I test the Native api for Node.js from the documentation, I noticed (if I'm correct) all methods and calls are synchronous. By default due to the nature of Node.js, there is only one thread of execution and normally  all JavaScript methods and all calls should be asynchronous and use either a callback function (the "old way") or promises or the async/await contruct to return their result, e.g.:

  • myFunction(params, callbackFunction(response))

  • myFunction(params).
#InterSystems IRIS #JavaScript #Node.js #Performance
15
0 887