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First-class functionwiki

In computer science, a programming language is said to have first-class functions if it treats functions as first-class citizens. This means the language supports passing functions as arguments to other functions, returning them as the values from other functions, and assigning them to variables or storing them in data structures. Some programming language theorists require support for anonymous functions (function literals) as well. In languages with first-class functions, the names of functions do not have any special status; they are treated like ordinary variables with a function type.

This post continues the article “Declarative development in Caché”.

[2, 3, 5, 7, 11, 13, 17].forEach(function(i) {
  console.log(i);
});

How to do something like this in Caché using COS?

Below are some exercises on this topic.

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I'm asking this best-practices question on behalf of a customer.

They have a Caché-based application, and an Ensemble production deployed in front as an ESB to provide web service API access to the back end application. They're looking for a best practice approach for the scenario where the Caché back end is calling a third-party web service. Should that go through Ensemble too? It's sort of a philosophical design question/debate.

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A group of students at the Chalmers University of Technology (Gothenburg, Sweden) tried different approaches to automatically rating the quality of emergency calls, including iKnow.

Excerpt: "The most impressive results produced by iKnow is its ability to correctly classify 100% of the calls using the Average algorithm. This is quite surprising since iKnow only compares low-level concepts, how words relates to each other."

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Good Afternoon,

I'm working on a API documentation that wil be interactive, it's based on a BS class on Ensemble.

The objective on making the documentation is simplify the undestanding of the operation for those who are not acquainted with the Ensemble environment.

My problem is, when using Postman to test a operation the indentation appears as such:

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Announcement
· Sep 13, 2023
InterSystems at HackMIT 2023

InterSystems team is heading to MIT's largest hackathon this weekend where we will introduce a tech challenge for hackers.
We offer hackers to use IntegratedML or InterSystems Supply Chain Orchestrator in their projects in order to compete for some really cool prizes!

If you are in Boston and would be interested to be an InterSystems mentor at the event - drop me a line.

UPDATE: We have our amazing winners! Check out these projects:

First Place – Fluxus Description | GitHub
Second Place – Carta Description | GitHub
Third Place – Manifest Description | GitHub

Thanks to everyone who took part in InterSystems Challenge!
Don't forget to join our Discord Server to stay in touch and receive notifications on upcoming InterSystems programming contests!

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Article
· Aug 21, 2019 2m read
ToolBox-4-Iris

Hello everyone,
After some work with IRIS we want to share our ToolBox-4-Iris with you.

What is this about?

The ToolBox-4-Iris is an API for IRIS with a collection of handy and useful tools - features that are not available in IRIS, but greatly simplify application development. To save time and effort on the "typical tools" that every developer needs. This includes additional classes, individual methods or even more efficient macros, which are described in the respective packages.

Content

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Recently I needed a classmethod that returns annotation value based on a name of a activity.

As doing it at runtime seemed inefficient, I wrote compile-time utility that iterates over all business process activities and generates relevant code.

This code could be used in a variety of situations when you need to iterate over business process activities, just add it as a secondary superclass to your BPL processes.

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Question
· May 23, 2018
DeadJobAlert question

We have received a dead job alert. We want to know when occurs this, I mean, Ensemble kills a job automatically if it is consuming a lot of memory or CPU? Or is the operating system who kills the job and Ensembe detects it and alerts?

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Hi there.

I'm really interested in using Atelier for its source control ability, and I have found a fair bit of info when it comes to starting a new project and then pushing that project to a chosen source control system.

However, my environment has a lot of existing code which was developed within Studio and Ensemble, and placing entire namespaces within a single project file feels wrong.

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The cdirectmgr utility will no longer be included with product distributions beginning with the Caché 2016.2 release . This was an older VB application (predating the Caché cube) which allowed users to define server connections for Visual M/Caché Direct applications. As VB 6 is no longer supported by Microsoft, we will no longer ship this component. The same functionality is already available from the cube utility.

It is also posted in Compatibility blog.

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By default, all files created inside a container are stored on a writable container layer. This means that:

  • The data doesn't persist when that container no longer exists, and it can be difficult to get the data out of the container if another process needs it.
  • A container's writable layer is tightly coupled to the host machine where the container is running. You can't easily move the data somewhere else.
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Hi Community!

It's time to celebrate our 19 fellow members who took part in the latest Technical Article Contest: InterSystems IRIS Tutorials and wrote

🌟 21 AMAZING ARTICLES 🌟

Our judges mentioned that it was a very tough challenge to choose only three articles each because more deserved points. Despite it all, they persevered and now it's time to announce the winners!

Let's meet the winners and look at their articles:

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Hello,

We have a scenario where a bad message(With control character in some fields) is coming frequently in our Standard HL7 Business Service.

I do see the process gets shut down because of E=D action code. I also see the service logging an "Warning" about the bad message. But service is not shutting down.

Is there a way to handle this error right at the service to avoid multiple processes going down? Not sure if we can create a task, which audits the service logs every few minutes. But that will involve some coding and checking of time when the errors happens.

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Function as a service (FaaS) is a category of cloud computing services that provides a platform allowing customers to develop, run, and manage application functionalities without the complexity of building and maintaining the infrastructure typically associated with developing and launching an app. Building an application following this model is one way of achieving a "serverless" architecture, and is typically used when building microservices applications.

Wikipedia

FaaS is an extremely popular approach to running workloads in the cloud, allowing developers to focus on writing code.

This article will show you how to deploy InterSystems IRIS methods in a FaaS way.

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Hi Community!

New Badges're already on Global Masters Advocacy Hub!

We're happy to announce that this year we again introduced three annual badges on Global Masters Advocacy Hub to let you remember how much you contributed to Developer Community in 2018. Here they are:

DC Best-Selling Author 2018
DC Expert 2018
DC Opinion Leader 2018

Let's take a closer look at the DC Wall of Fame 2018 and greet everyone with big applause!

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This is a series of programming challenges for beginners and experienced Caché programmers.

For an introduction : goto to article https://community.intersystems.com/post/advent-code-2016-day1-no-time-ta...

The challenge of day 5 is to calculate a password of 8 characters by finding the MD5 hash of the input and an increasing integer index.
The password is constructed by taking the 6th character of the first 8 hashes that start with 5 zeroes (in hex representation).

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