Discussion
· Jul 28, 2023
Code Golf: Parenthesis

Our previous code golf ended with an overwhelming win, so now it's time for another one.
Parenthesis Hell is a Lisp-like esoteric programming language(esolang).
As a Lisp-like language, the code consists only of nested matched pairs of opened and closed parenthesis.
Your task is to write a method that receives a string of parenthesis and returns 1 if the order of the parenthesis is valid. For example, the string of parenthesis (())() is valid because it contains a matched pair of opened and closed parenthesis at each position. The string ()((()))) is not valid because it contains one unmatched parenthesis.

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Discussion
· Feb 2, 2022
Code Golf: Paired Opposites

You will receive a string of comma-separated integers whose elements have both a negative and a positive value, except for one integer that is either only negative or only positive, our challenge will be to find that integer.
As usual shortest solution wins.

Input

"1,-1,2,-2,3"

Output

3

3 has no matching negative appearance

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Hi Community!

Sometimes I meet a method which accepts 10+ parameters.

And often I need only the 8th parameter to pass. And I call the method something like:

do ##class(Some.Feature).Method(,,,,,,,"flag")

And I don't like this method when I call it like this cause, you know, often I just miss the number of commas and raise some other flag I wanted.

How do you avoid this situations?

If you meet such a code, how do you call it and sure that you didn't miss the number of ","?

What is a good number of parameters in a method and f you need to pass more parameters in a method what do you do?

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So, the next year will bring us a new way of installing IRIS. Always keep in mind that you have to bring your own web server. No matter how many instances of IRIS you have on your local machine. Or if you work in Docker, always keep in mind a bit more complicated configuration.

And I now want to understand the costs of this decision for end-developers like most of here.

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Discussion
· Jan 10, 2021
Code Golf: Diamonds
To start the year let's have a round of CodeGolf!

You know the drill. Shortest solution wins.

Print a size ascending range of Diamonds using the numbers 1 to 9, ranging from size 1 to size N, each diamond separated by a blank line.

A size 1 diamond should look like this, a single centered 1:

         1

With the size N=9 diamond looking like this:

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Hi Devs!

A few months ago I raised a discussion on the naming convention for ZPM modules.

And you free to put your name or your organization name for the packages you want to have your personal or company's brand.

But if you contribute to community, we suggested to have "community." package for all such libraries.

But the name is too long.

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Discussion
· Sep 28, 2020
%Status usage in ObjectScript

Hi developers!

Want to discuss with you the case of %Status.

If you familiar with ObjectScript you know what is it. I'd love to hear the history of the case why it had appeared in ObjectScript but it turned out that almost every system/library classmethods return %Status and there is a whole set of tools to deal with it.

What is does it gives you the responsibility to check the value or %Status of every system method you call.

E.g. if you save the data of the persistent class, you should never call like this:

do obj.%Save()

you need to call:

set sc=obj.%Save()

if $$$ISERR(sc) do // something or quit.

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Multi-tap or multi-press is the name given to the historic technique of writing SMS on the first mobile phones with a keyboard of 10-12 numeric keys.
For example, to type LOL you need to press 5 three times, 6 three times and 5 three times again.
Your task is to write a function that takes a string as input and returns the repeated digits associated with each character according to the multi-tap system.

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I am aware that we have 5 License Units on Community Edition. But I have issues figuring out how it's working.

I have Community Edition

USER>write $system.License.KeyCustomerName()
InterSystems IRIS Community

Freshly started system, only terminal session open, so, only one license units used, and 4 left. As expected

USER>write $system.License.LUConsumed()
1
USER>write $system.License.LUAvailable()
4

Quote from documentation - $SYSTEM.License.MaxConnections() returns the maximum number of connections a user can make while consuming one license unit.

USER>write $system.License.MaxConnections()
25

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It's Friday and a long weekend is upon us, so let's have a round of code golf!

Nowadays, it's rare to find a text message without at least one emoji. 😃😄😎🙂😊😀😁😆😂
But back in the day, people had to be creative to express their emotions in text. They would use emoticons, which are symbols made up of keyboard characters :^) =] ) B).
Our challenge for today is to create a function that receives a string as argument and returns the total number of smiling faces or happy faces.
Each smiley face must have one smiling mouth, which should be marked with ), ], }, D or >.
A smiley face can have a pair of eyes but it does not have to. Valid characters for eyes are :, ;, 8, B or =.
A nose is optional, and can be represented these characters: -, ^, c, o and ~.

Valid smiley face examples:

    :) :D ;-D :~) :‑) :-] =)    
    :] :-> :> 8-) :D 8‑D )
    8) :-} :} :o) :c) :^) =]
    :‑D 8D =D B^D

Input

"count how many smiley faces are here :)"

Output

1

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Hi Developers!

Often we need to use relatively small arrays with constants, static arrays in algorithms, etc where we need to do something with each element of an array. There are several ways to deal with it in ObjectSctipt.

Previously I used to use globals, locals, PPG for this but not so long time ago figured out that %List is a way too handy.

Indeed, suppose we have an array of months and need to set up and use it in our code.

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A quine is a computer program which takes no input and produces a copy of its own source code as its only output.

Wikipedia.

How about a fun challenge?

The task is to write a quine in InterSystems ObjectScript. It can be a class, or a method, or a routine, or just a line to be executed in a terminal. You decide!

Here's some resources you might consider useful:

Hard mode: do not use source code access functions.

Here's my (extremely uninspired, I know) attempt:

Class User.Quine
{

/// do ##class(User.Quine).Test()
ClassMethod Test()
{
    set sc = ##class(%Compiler.UDL.TextServices).GetTextAsString($namespace, $classname(), .str)
    write str
}

}

It produces this output:

How many different ways of producing a quine are there in ObjectScript?

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The new $system.external interface (aka "InterSystems External Servers") is used to call/integrate with external language code/libraries, it replace the old gateways (for example Java gateway) that required the import of proxy objects.

Note that the documentation for the old gateways has been removed from IRIS, so only the new $system.external interface is somewhat (i.e. insufficiently) documented.

Regarding the migration from old gateway to new $system.external interface the documentation says:

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Hello, InterSystems community!

Lately, you have probably heard of the new InterSystems Package Manager - ZPM. If you're familiar with it or with such package managers as NPM, Dep, pip/PyPI, etc. or just know what is it all about -- this question is for you! The question I want to arise is actually a system design question, or, in other words, "how should ZPM implement it".

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Discussion
· Nov 9, 2022
Code Golf: Word Order

We're back with a code golf!

You will receive a string. Each word in the string will contain a number.
This number is the position that word should have in the sentence.
If the input string is empty, return an empty string.
The output can only be in words, without the given numbers.

Input

"i2s T1his Te4st a3"

Output

This is a Test

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I usually receive complains from our customers about the BPL and DTL web pages automatic refreshes, it's a common problem among newbies users but for veteran developers too, they forget to save the changes regularly and automatically the web page is reloaded, losing all the work done.

Maybe an autosave would fix this problem that produces a deep feeling of hate and resentment against InterSystems technology among our customers. I've added an idea in our portal, so feel free to vote it!

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Discussion
· Apr 23, 2021
External Language Server in 2021.1

Now that IRIS 2021.1 is available as a preview version, I would like to demonstrate a "new" feature. The Java Gateway has been around for a while now but in 2021.1 it has new skills. External Language Servers are available for Java, DotNet, and Python. Here is a quick - very quick - demo of using the External Java Server. Please don't focus solely on what this demo is doing but rather on what is happening in this demo. First, I acquire a gateway connection oref. This gateway connection is connected to the External Java Server - one of the External Language Servers.

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Hello community! I'm working on an internal innovation effort at InterSystems considering our documentation/resources around upgrades. As part of this, I'd love to have your answers to any/all of the following questions, either via comment or (if you prefer your answers to be more private) direct message.

Thanks in advance!

What InterSystems products + versions are you running? ($zv is ideal.)

What makes you decide to upgrade?

What are your blockers to upgrading?

What is your process for evaluating and planning a possible upgrade?

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