marble | functional reactive Node.js framework | Reactive Programming library

 by   marblejs TypeScript Version: v4.1.0 License: MIT

kandi X-RAY | marble Summary

kandi X-RAY | marble Summary

marble is a TypeScript library typically used in Programming Style, Reactive Programming, React, Nodejs, Framework applications. marble has no bugs, it has no vulnerabilities, it has a Permissive License and it has medium support. You can download it from GitHub.

Functional reactive Node.js framework for building server-side applications, based on TypeScript and RxJS. For the latest updates, documentation, change log, and release information visit docs.marblejs.com and follow @marble_js on Twitter. To view example projects, reach out the @integration package available in the main repository.
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              marble has a medium active ecosystem.
              It has 2113 star(s) with 67 fork(s). There are 30 watchers for this library.
              OutlinedDot
              It had no major release in the last 12 months.
              There are 4 open issues and 57 have been closed. On average issues are closed in 112 days. There are no pull requests.
              It has a neutral sentiment in the developer community.
              The latest version of marble is v4.1.0

            kandi-Quality Quality

              marble has no bugs reported.

            kandi-Security Security

              marble has no vulnerabilities reported, and its dependent libraries have no vulnerabilities reported.

            kandi-License License

              marble 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

              marble releases are available to install and integrate.

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            marble Key Features

            No Key Features are available at this moment for marble.

            marble Examples and Code Snippets

            No Code Snippets are available at this moment for marble.

            Community Discussions

            QUESTION

            do databases not exist under event stores (like kafka)? Do we not query data from databases anymore?
            Asked 2021-Jun-08 at 18:04

            Trying to understand event driven microservices; like in this video. It seems like the basic idea is "producers create tasks that change the state of a system. Consumers read all relevant tasks (from whatever topic they care about) and make decisions off that"

            So, if I had a system of jars- say a red, blue, and green jar (topics). And then had producers adding marbles to each jar (deciding color based on random number, let's say). The producers would tell kafka "add a marble to red. Add a marble to blue... etc" Then, the consumers, every time we wanted to count jars would get the entire log and say "ok, a marble was added to red, so redCount++, then a marble was added to blue so blueCount++..." for the dozens/hundreds/thousands of lines that the log file takes up?

            That can't be correct; I know it can't be correct. It seems incredibly inefficient; almost anti-efficient!

            What am I missing in my knowledge of kafka tasks?

            ...

            ANSWER

            Answered 2021-Jun-08 at 16:06

            The data in each of those topics will be retained as per a property log.retention.{hours|minutes|ms}. At the Kafka server level, this is set to 7 days by default for all topics. You could change this at a topic level as well.

            In such a setting, a consumer will not be able to read the entire history if it needed to, so in this instance typically a consumer would:

            1. consume the message i.e. "a marble no. 5 was added to red jar" at offset number 5
            2. carry out the increment step i.e. redCount++ and store the latest information (redCount = 5) in a local state store
            3. Then commit the offset back to Kafka telling that it has read the message at offset number 5
            4. Then, just wait for the next message...

            If however, your consumer doesn't have a local state store - In this case, you would need to increase the retention period i.e. log.retention.ms=-1 to store the data forever. You could configure the configure the consumers to store that information locally in memory but in the event of failures there would be no choice but for the consumers to read from the beginning. This I agree is inefficient.

            Source https://stackoverflow.com/questions/67889719

            QUESTION

            Elements and positioning not applying
            Asked 2021-Jun-03 at 12:57

            I am working out of "HTML5 and CSS5 Illustrated Complete" Second Edition by Sasha Vodnik. I did the initial Unit D example to a Tee, however logo styling and the positioning aren't applying correctly or at all.

            ...

            ANSWER

            Answered 2021-Feb-16 at 19:29

            Add top: 0; to your header in CSS. It should look like this:

            Source https://stackoverflow.com/questions/66230565

            QUESTION

            The 'compilation' argument must be an instance of Compilation
            Asked 2021-Jun-02 at 17:41

            Been getting this error when running 'ng build' on my Angular 12.0.2 project

            ...

            ANSWER

            Answered 2021-Jun-02 at 17:41

            We figured it out. As you can see in our packages.json, we have a dependency on webpack. It seems angular-devkit/build-angular does as well. We believe this created the known issue of multiple webpacks colliding and causing issues. Removing our dependency on webpack fixed the issue.

            Source https://stackoverflow.com/questions/67727180

            QUESTION

            How do I keep only the first map and when the game is finished, if you click on the map the game restarts
            Asked 2021-Jun-01 at 06:17

            I havet this codepen: https://codepen.io/sp2012/pen/VwpyWdp . Unfortunately, this code is too advanced for me. The game has three maps. I want to keep only the first map and when the game is finished, if you click on the map the game restarts.

            The code follows:

            This is the HTML:

            ...

            ANSWER

            Answered 2021-Jun-01 at 06:17

            Just comment out the second and third level section of the levels[0] object (maps). Change the HTML content that makes reference to other levels.

            Source https://stackoverflow.com/questions/67783180

            QUESTION

            Rxjs, Combine last query result for multiple group (combine switchMap with groupBy)
            Asked 2021-May-30 at 10:44

            I have an issue using the operator. Basically I have multiple payslips and I want to keep a debounce for each payslip and trigger a query. I want to subscribe to only the last query that succeed for a specific payslip and if a new request is triggered for this payslip before the previous one finished, I want to cancel the previous one.

            Here's a sample marble diagram for what i'm looking for:

            -----1----1-----1----3----3----3----3-----1---3---1---3---1------>

            (magic operators for which I'm unclear)

            -------------------1-------------------3-----1---3---1---3---1--->

            I have debounce and query, which I like, but it does this:

            -----1----1-----1----3----3----3----3-----1---3---1---3---1------>

            debounce

            -------------------1-------------------3--------------------1---->

            ...

            ANSWER

            Answered 2021-May-30 at 10:44

            I am struggling to find anything wrong with your code or it's outcomes.

            I have put the following test code in the ThinkRx playground

            Source https://stackoverflow.com/questions/67758990

            QUESTION

            How to test subscription inside method
            Asked 2021-May-25 at 06:51

            Consider this angular component:

            ...

            ANSWER

            Answered 2021-May-24 at 22:45

            Your main question is:

            I would like more granular control of observable behavior. I don't really intend to complete the getStatus() observable.

            If you do not want to complete it then it essentially is not a cold observable, its a hot observable, that would mean you can create a subject and pass

            Source https://stackoverflow.com/questions/67676329

            QUESTION

            The game with the marbles
            Asked 2021-May-24 at 15:59

            Problem: There are R red marbles, G green marbles and B blue marbles (R≤G≤B) Count the number of ways to arrange them in a straight line so that the two marbles next to each other are of different colors.

            For example, R=G=B=2, the answer is 30.

            I have tried using recursion and of course TLE:

            Define r(R,B,G) to be the number of ways of arranging them where the first marble is red. Define b(R,B,G),g(R,B,G) respectively.
            Then r(R, B, G) = b(R-1,B,G) + g(R-1,B,G)
            And the answer is r(R,B,G) + b(R,B,G) + g(R,B,G)

            But we can see that r(R, B, G) = b(B, R, G) ...
            So, we just need a function f(x,y,z)=f(y,x−1,z)+f(z,x−1,y)
            And the answer is f(x,y,z) + f(y,z,x) + f(z,x,y).

            The time limit is 2 seconds.

            I don't think dynamic is not TLE because R, G, B <= 2e5

            ...

            ANSWER

            Answered 2021-May-24 at 15:38

            Some things to limit the recursion:

            • If R>G+B+1, then there is no way to avoid having 2 adjacent reds. (Similar argument for G>R+B+1 & B>R+G+1.)
            • If R=G+B+1, then you alternate reds with non-reds, and your problem is reduced to how many ways you can arrange G greens and B blacks w/o worrying about adjacency (and should thus have a closed-form solution). (Again, similar argument for G=R+B+1 and B=R+G+1.)

            Source https://stackoverflow.com/questions/67672004

            QUESTION

            RXJS steam with distinct and throttleTime
            Asked 2021-May-16 at 13:54

            I need help to create a RXJS stream which does the following.

            Input: Keyboard inputevent a to z Emit value if:

            • Character has NOT been used before
            • Character has been used before but it is more than 5 seconds ago. else discard value

            Marble diagram (- is 1 second):

            ...

            ANSWER

            Answered 2021-May-16 at 13:54

            You can group your input by character using groupBy. We can then grab the first occurrence in each group and finally merge everything back. As luck would have it, groupBy lets us define a duration selector to specify how long a group should live, so if we set that to 5 seconds, we basically "reset" each group after that time:

            Source https://stackoverflow.com/questions/67557336

            QUESTION

            RXJS Show accumulated result within a timerange
            Asked 2021-May-14 at 16:30

            I need to make a function that takes in a RXJS stream and return an accumulated result for last x minute (or a given timerange) I think this is probably easier to explain if I give an example:

            I'll try to illustrate what I want with marble diagrams:

            ...

            ANSWER

            Answered 2021-May-14 at 16:30

            Think of every value as having a minute-long lifetime - it "enters" when it's born, and it "exits" when it's finished.

            So each value needs to be converted into an observable modeling the enter/exit events. Then all you need is a simple reducer to accumulate the events into the value/count map you want.

            Creating a custom operator from this is straightforward. You can parameterize the "lifetime", and even the reducer that handles the enter/exit actions (tons of ways to accumulate and de-accumulate).

            Source https://stackoverflow.com/questions/67535552

            QUESTION

            Renovate: group dependencies in one merge request
            Asked 2021-May-11 at 12:00

            I want to group all related dependencies in one merge request (MR), as the examples below:

            In one MR (all starting @angular/ except @angular/cli):

            ...

            ANSWER

            Answered 2021-May-11 at 12:00

            Apparently it was a bug

            https://github.com/renovatebot/renovate/pull/9949

            In the version 25.18.5 should be fixed

            Source https://stackoverflow.com/questions/67465571

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

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            You can download it from GitHub.

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