raco | Generator based flow-control that supports both callback | Reactive Programming library

 by   cshum JavaScript Version: Current License: MIT

kandi X-RAY | raco Summary

kandi X-RAY | raco Summary

raco is a JavaScript library typically used in Programming Style, Reactive Programming, Nodejs, Unity applications. raco has no bugs, it has no vulnerabilities, it has a Permissive License and it has low support. You can install using 'npm i raco' or download it from GitHub, npm.

Generator based flow-control that supports both callback and promise. Many existing flow-control libraries such as co, assume promises to be the lowest denominator of async handling. Callback function requires promisify patch to be compatible, which creates unnecessary complication. In raco, both callbacks and promises are yieldable. Resulting function can be called by both callbacks and promises. This enables a powerful control flow while maintaining simplicity. Resolves a generator function. This does not return a Promise; uncaught error will be thrown. Yieldable callback works by supplying an additional next argument. Yielding non-yieldable value pauses the current generator, until next(err, val) being invoked by callback. val passes back to yielded value, or throw if err exists. Wraps a generator function into regular function that optionally accepts callback or returns a promise. Wraps generator methods of class or object.
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            kandi-support Support

              raco has a low active ecosystem.
              It has 33 star(s) with 1 fork(s). There are 1 watchers for this library.
              OutlinedDot
              It had no major release in the last 6 months.
              There are 0 open issues and 2 have been closed. On average issues are closed in 246 days. There are no pull requests.
              It has a neutral sentiment in the developer community.
              The latest version of raco is current.

            kandi-Quality Quality

              raco has 0 bugs and 0 code smells.

            kandi-Security Security

              raco has no vulnerabilities reported, and its dependent libraries have no vulnerabilities reported.
              raco code analysis shows 0 unresolved vulnerabilities.
              There are 0 security hotspots that need review.

            kandi-License License

              raco is licensed under the MIT License. This license is Permissive.
              Permissive licenses have the least restrictions, and you can use them in most projects.

            kandi-Reuse Reuse

              raco releases are not available. You will need to build from source code and install.
              Deployable package is available in npm.
              Installation instructions are not available. Examples and code snippets are available.

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            raco Key Features

            No Key Features are available at this moment for raco.

            raco Examples and Code Snippets

            No Code Snippets are available at this moment for raco.

            Community Discussions

            QUESTION

            Providing struct constructor from library
            Asked 2020-Dec-17 at 06:17

            I'm currently working on extending racklog, which is a library I installed by running raco pkg install in the repo directory.

            I'm trying to provide a new function, namely a struct constructor. Currently, I'm defining the struct as follows in racklog.rkt. I then provide it from that file.

            ...

            ANSWER

            Answered 2020-Dec-17 at 06:17

            This is an unfortunate stale compiled file issue. Try raco setup --pkgs racklog to compile racklog and run your program again. It should now work. Alternatively, you can manually delete the compiled directories.

            Source https://stackoverflow.com/questions/65330654

            QUESTION

            'raco' is not recognized on the windows 10 command line
            Asked 2020-Nov-09 at 12:37

            I'm trying to get familiar with DrRacket plugin framework, and I'm using the following tutorial:

            https://lang.video/blog/2018/03/21/making-an-ide-plugin-for-drracket/

            I'm stuck at the step where raco is used:

            When i run the command, my windows 10 operating system gives back the following error message, How can i solve this?:

            'raco' is not recognized as an internal or external command, operable program or batch file.

            second question:

            I've also tried putting the clippy folder into a folder within my program files, in the DrRacket installation. Is this the location where Racket Plugins should reside, or can they be placed in any folder?

            ...

            ANSWER

            Answered 2020-Nov-09 at 12:37

            Add racket and raco to your Windows PATH (the directories in which Windows looks for commands).

            https://beautifulracket.com/setting-the-windows-path.html

            Source https://stackoverflow.com/questions/64751268

            QUESTION

            Show additional category on the x-axis with ggplot
            Asked 2020-Oct-22 at 18:09

            Hiii!

            I'm writing my master thesis and I am struggling with the plots. I want to represent the juvenile fish abundances for each sampled site. This is what it looks like right now:

            ...

            ANSWER

            Answered 2020-Oct-22 at 16:53

            I think I know what you're talking about: You're looking for something like the multiple rows in x axes that Excel PivotCharts give when you split your data multiple ways, right? I don't know of a way to do this in R without a lot of hacky workarounds. Instead, have you considered using small multiples to represent your data? Here's an example of small multiples for your data, still using ggplot2. I have also removed the extra space between the 0 and the horizontal axis using expand = within the scale_y_continuous call.

            Data I used:

            Source https://stackoverflow.com/questions/64485724

            QUESTION

            How might one enable '\n' interpretation with read -p command?
            Asked 2020-Aug-22 at 11:51

            The following code does not display newline after the prompt:

            ...

            ANSWER

            Answered 2020-Aug-22 at 11:51

            read -p "prompt" does not interpret escapes from the prompt string.

            Although, a string literal can express control characters with escaping, if it uses the POSIX candidate ANSI-C style string syntax of: $'I am an ANSI-C style string\nin a shell script\n'

            This type of string can be used for a Bash read -p prompt string as:

            Source https://stackoverflow.com/questions/63535068

            QUESTION

            Racket/Scheme compile to single binary, no dependencies? FFI and static linking
            Asked 2020-Jul-21 at 17:17

            Say I'm building an app in Racket.

            And say eventually I want to compile that app as a single binary file that could be distributed to users, without them having Racket or any other software libs installed. I believe this is possible, yes?

            Say in that app I want to use the snappy package https://docs.racket-lang.org/snappy/ which is some FFI wrappers around a C++ lib.

            I already ran into a minor problem. I did (require snappy) inside DrRacket and followed the prompts and got the package installed but I get the error:

            ...

            ANSWER

            Answered 2020-Jul-21 at 12:18

            There is a partial solution using a combination of raco distribute and define-runtime-path.

            Suppose you have a program that uses libzmq, which you know is installed on your build system at /usr/lib/x86_64-linux-gnu/libzmq.so.5. You can use define-runtime-path to create a reference to that file and tell raco distribute to copy it to the distribution directory. For example, suppose that "my-app.rkt" is the following:

            Source https://stackoverflow.com/questions/62972086

            QUESTION

            How to test a racket package self-sufficiently?
            Asked 2020-May-26 at 16:42

            I’m trying to understand testing for packages in racket. And I wonder if anyone can give me an explainer on the idiomatic way to do package testing. So, I have a package in front of me (it’s someone else’s but I’m thinking about contributing) that has a few collections. The info.rkt looks a bit like this:

            ...

            ANSWER

            Answered 2020-May-26 at 16:42

            This is an interesting question, and you may want to ask it on the Racket mailing list or Slack.

            My recommendation is to assume that in most cases you must install a package to test it, especially if it contains multiple collections. In particular, I recommend assuming that requiring a module in another collection should always use an absolute module path instead of a relative path, even if they're in the same package. I was surprised that this doesn't seem to be enforced (based on one small test I did), but I wouldn't rely on the current lax behavior. I doubt Scribble can handle relative module names (but I haven't checked), so if your definition of "testing" includes building and checking the docs, that's another reason installation would be needed.

            Source https://stackoverflow.com/questions/62014612

            QUESTION

            iracket can't find jupyter, even though it's already installed
            Asked 2020-Apr-13 at 08:28

            When trying to install the iracket kernel, it throws

            ...

            ANSWER

            Answered 2020-Apr-13 at 08:28

            The iracket install command needs to run the jupyter.exe command to find the directory where Jupyter kernels are stored. So you need to find where pip installed jupyter.exe and then add the directory containing jupyter.exe to your PATH, or you need to run the iracket install script with raco iracket install --jupypter-exe path-to-jupyter.exe.

            Source https://stackoverflow.com/questions/61179938

            QUESTION

            How do I link to third party Racket docs in Scribble?
            Asked 2020-Mar-15 at 11:29

            I'm attempting to link to Scribble docs provided by a third party (as opposed to core) library (specifically, data/collection), but I'm having trouble getting it to work.

            With these imports:

            ...

            ANSWER

            Answered 2020-Mar-15 at 11:29

            The problem is that you only install collections-lib. This does not include its documentation which lives at collections-doc.

            So either install the package collections-doc or the (meta-)package collections which will include both collections-lib and collections-doc. Then, run raco setup relation to re-render your documentation. This would suffice for your own builds.

            You probably should also modify info.rkt so that other people who install your package download the desired dependencies. There are a couple of ways to set this up.

            • An easy way is to put collections in deps, which will require users to install the meta-package collections, hence installing both collections-lib and collections-doc.
            • A more difficult way is put collections-lib in deps (you did this already) and put collections-doc in build-deps. An advantage of this approach is that users won't be required to download all tools necessary for building documentation if they install your package as a binary package (which will pre-renders the documentation already).

            Source https://stackoverflow.com/questions/60662146

            QUESTION

            Installing Racket Packages without installing Dr Racket
            Asked 2020-Mar-06 at 01:53

            I am running a minimal install of Racket and wish to install the sql package. If I try the command:

            ...

            ANSWER

            Answered 2020-Mar-06 at 01:53

            --no-docs means it will not setup documentation, but it is still a dependency!

            Note however that sql's info.rkt indicates racket-doc as a built-deps. That means if you install a binary package from the built-package catalog, racket-doc will no longer be a dependency.

            For Racket 7.6 (current version as of writing) and before:

            (Note: this solution is due to Jack Firth)

            As a first step, we need to add the built-package catalog to the list of catalogs that raco pkg will use by default. This could be done by:

            Source https://stackoverflow.com/questions/60484316

            QUESTION

            Python base64 in HTML - broken image
            Asked 2020-Feb-29 at 16:47

            I try to do:

            • take screenshot using python-mss
            • resize and then convert to base64
            • using JS load by ajax using python-flask request handler and paste the result to src attribute in img tag like data:image/png;base64,{{base64}}

            HTML result:

            get_base64_screenshot.py

            ...

            ANSWER

            Answered 2020-Feb-29 at 16:39

            You are encoding the raw cv2 image data as base64, which your web browser won't understand. You need to encode the raw image data to jpg and then encode it.

            Source https://stackoverflow.com/questions/60467123

            Community Discussions, Code Snippets contain sources that include Stack Exchange Network

            Vulnerabilities

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