feel | Expression Language for creating and executing business | Rule Engine library
kandi X-RAY | feel Summary
kandi X-RAY | feel Summary
FEEL is an expression language based on DMN specification conformance level 3. Written using PEG.js - JavaScript Parser Generator. FEEL is a very powerful language built with the purpose of defining rules in Business Rule Engines. FEEL also offers an API to implement and execute Decision Table defined in excel (.xlsx).
Support
Quality
Security
License
Reuse
Top functions reviewed by kandi - BETA
Currently covering the most popular Java, JavaScript and Python libraries. See a Sample of feel
feel Key Features
feel Examples and Code Snippets
Community Discussions
Trending Discussions on feel
QUESTION
Motivating background info: I maintain a C++ library, and I spent way too much time this weekend tracking down a mysterious memory-corruption problem in an application that links to this library. The problem eventually turned out to be caused by the fact that the C++ library was built with a particular -DBLAH_BLAH compiler-flag, while the application's code was being compiled without that -DBLAH_BLAH flag, and that led to the library-code and the application-code interpreting the classes declared in the library's header-files differently in terms of data-layout. That is: sizeof(ThisOneParticularClass) would return a different value when invoked from a .cpp file in the application than it would when invoked from a .cpp file in the library.
So far, so unfortunate -- I have addressed the immediate problem by making sure that the library and application are both built using the same preprocessor-flags, and I also modified the library so that the presence or absence of the -DBLAH_BLAH flag won't affect the sizeof() its exported classes... but I feel like that wasn't really enough to address the more general problem of a library being compiled with different preprocessor-flags than the application that uses that library. Ideally I'd like to find a mechanism that would catch that sort of problem at compile-time, rather than allowing it to silently invoke undefined behavior at runtime. Is there a good technique for doing that? (All I can think of is to auto-generate a header file with #ifdef/#ifndef tests for the application code to #include, that would deliberately #error out if the necessary #defines aren't set, or perhaps would automatically-set the appropriate #defines right there... but that feels a lot like reinventing automake and similar, which seems like potentially opening a big can of worms)
ANSWER
Answered 2022-Apr-04 at 16:07One way of implementing such a check is to provide definition/declaration pairs for global variables that change, according to whether or not particular macros/tokens are defined. Doing so will cause a linker error if a declaration in a header, when included by a client source, does not match that used when building the library.
As a brief illustration, consider the following section, to be added to the "MyLibrary.h" header file (included both when building the library and when using it):
QUESTION
Not really sure what caused this but most likely exiting the terminal while my rails server which was connected to PostgreSQL database was closed (not a good practice I know but lesson learned!)
I've already tried the following:
- Rebooting my machine (using MBA M1 2020)
- Restarting PostgreSQL using homebrew
brew services restart postgresql - Re-installing PostgreSQL using Homebrew
- Updating PostgreSQL using Homebrew
- I also tried following this link but when I run
cd Library/Application\ Support/Postgresterminal tells me Postgres folder doesn't exist, so I'm kind of lost already. Although I have a feeling that deleting postmaster.pid would really fix my issue. Any help would be appreciated!
ANSWER
Answered 2022-Jan-13 at 15:19My original answer only included the troubleshooting steps below, and a workaround. I now decided to properly fix it via brute force by removing all clusters and reinstalling, since I didn't have any data there to keep. It was something along these lines, on my Ubuntu 21.04 system:
QUESTION
In my dataframe, I have multiple columns with student grades. I would like to sum the "Quiz" columns (e.g., Quiz1, Quiz2). However, I only want to sum the top 2 values, and ignore the others. I want to create a new column with the total (i.e., the sum of the top 2 values). There is also the issue of having grades that tie for the top 2 grades in a given row. For example, Aaron has a high score of 42, but then there are two scores that tie for the second highest (i.e., 36).
Data
...ANSWER
Answered 2021-Dec-12 at 23:25QUESTION
I know Python // rounds towards negative infinity and in C++ / is truncating, rounding towards 0.
And here's what I know so far:
...ANSWER
Answered 2022-Jan-18 at 21:46Although I can't provide a formal definition of why/how the rounding modes were chosen as they were, the citation about compatibility with the % operator, which you have included, does make sense when you consider that % is not quite the same thing in C++ and Python.
In C++, it is the remainder operator, whereas, in Python, it is the modulus operator – and, when the two operands have different signs, these aren't necessarily the same thing. There are some fine explanations of the difference between these operators in the answers to: What's the difference between “mod” and “remainder”?
Now, considering this difference, the rounding (truncation) modes for integer division have to be as they are in the two languages, to ensure that the relationship you quoted, (m/n)*n + m%n == m, remains valid.
Here are two short programs that demonstrate this in action (please forgive my somewhat naïve Python code – I'm a beginner in that language):
C++:
QUESTION
I recently wrote
...ANSWER
Answered 2022-Jan-24 at 21:54You could perhaps do it like this:
QUESTION
I am working with WSL a lot lately because I need some native UNIX tools (and emulators aren't good enough). I noticed that the speed difference when working with NPM/Yarn is incredible.
I conducted a simple test that confirmed my feelings. The test was running npx create-react-app my-test-app and the WSL result was Done in 287.56s. while GitBash finished with Done in 10.46s..
This is not the whole picture, because the perceived time was higher in both cases, but even based on that - there is a big issue somewhere. I just don't know where. The project I'm working on uses tens of libraries and changing even one of them takes minutes instead of seconds.
Is this something that I can fix? If so - where to look for clues?
Additional info:
my processor: Processor AMD Ryzen 7 5800H with Radeon Graphics, 3201 Mhz, 8 Core(s), 16 Logical Processors
I'm running Windows 11 with all the latest updates to both the system and the WSL. The chosen system is Ubuntu 20.04
I've seen some questions that are somewhat similar like 'npm install' extremely slow on Windows, but they don't touch WSL at all (and my pure Windows NPM works fast).
the issue is not limited to NPM, it's also for Yarn
another problem that I'm getting is that file watching is not happening (I need to restart the server with every change). In some applications I don't get any errors, sometimes I get the following:
...
ANSWER
Answered 2021-Aug-29 at 15:40Since you mention executing the same files (with proper performance) from within Git Bash, I'm going to make an assumption here. Correct me if I'm wrong on this, and I'll delete the answer and look for another possibility.
This would be explained (and expected) if your files are stored on /mnt/c (a.k.a. C:, or /C under Git Bash) or any other Windows drive, as they would likely need to be to be accessed by Git Bash.
WSL2 uses the 9P protocol to access Windows drives, and it is currently known to be very slow when compared to:
- Native NTFS (obviously)
- The ext4 filesystem on the virtual disk used by WSL2
- And even the performance of WSL1 with Windows drives
I've seen a git clone of a large repo (the WSL2 Linux kernel Github) take 8 minutes on WSL2 on a Windows drive, but only seconds on the root filesystem.
Two possibilities:
If possible (and it is for most Node projects), convert your WSL to version 1 with
wsl --set-version 1. I always recommend making a backup withwsl --exportfirst.And since you are making a backup anyway, you may as well just create a copy of the instance by
wsl --importing your backup as--version 1(as the last argument). WSL1 and WSL2 both have their uses, and you may find it helpful to keep both around.See this answer for more details on the exact syntax..
Or just move the project over to somewhere under the WSL root, such as
/home/username/src/.
QUESTION
I have a sorted array of values and a single value like so:
...ANSWER
Answered 2021-Dec-07 at 22:21If you need a faster version and you don't need to check your inputs you can write an easy C++ function:
QUESTION
I recently learned there seem to be multiple ways to display an image on a web page.
The first way is to directly assign the URL to an image element's URL
...ANSWER
Answered 2021-Oct-12 at 23:04- The second way is called Data URL, which allow embed small files inline in HTML/CSS, for example:
QUESTION
This question and related answers will be for educational or learning purpose only.
This question is much different from my other post and is not duplicate. Since it was creating confusion and as suggested by @MT0, I am posting this as a new question here.
I have below table, where I upload stock data on daily basis.
...ANSWER
Answered 2021-Oct-04 at 20:52Patterns in MATCH_RECOGNIZE work in a similar fashion to regular expressions; you want something like:
(Note: your PIERCING_LINE formula does not give the expected output so I have assumed you want C > (C1 + O1)/2 rather than C > C1 + (O1/2).)
QUESTION
TL;DR: How can we achieve something similar to Group By Roll Up with any kind of aggregates in pandas? (Credit to @Scott Boston for this term)
I have following dataframe:
...ANSWER
Answered 2021-Aug-27 at 16:00I think this is a bit more efficient:
Community Discussions, Code Snippets contain sources that include Stack Exchange Network
Vulnerabilities
No vulnerabilities reported
Install feel
Support
Reuse Trending Solutions
Find, review, and download reusable Libraries, Code Snippets, Cloud APIs from over 650 million Knowledge Items
Find more librariesStay Updated
Subscribe to our newsletter for trending solutions and developer bootcamps
Share this Page
