first | A tiny flow-control library for node | Reactive Programming library

 by   DanielBaulig JavaScript Version: 0.0.3 License: MIT

kandi X-RAY | first Summary

kandi X-RAY | first Summary

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

first is a flow-control library for node. It provides a clean and easy to use interface for sequentializing and parallelizing asynchronous functions.
Support
    Quality
      Security
        License
          Reuse

            kandi-support Support

              first has a low active ecosystem.
              It has 6 star(s) with 2 fork(s). There are 2 watchers for this library.
              OutlinedDot
              It had no major release in the last 12 months.
              There are 0 open issues and 1 have been closed. There are no pull requests.
              It has a neutral sentiment in the developer community.
              The latest version of first is 0.0.3

            kandi-Quality Quality

              first has no bugs reported.

            kandi-Security Security

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

            kandi-License License

              first 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

              first 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.

            Top functions reviewed by kandi - BETA

            kandi's functional review helps you automatically verify the functionalities of the libraries and avoid rework.
            Currently covering the most popular Java, JavaScript and Python libraries. See a Sample of first
            Get all kandi verified functions for this library.

            first Key Features

            No Key Features are available at this moment for first.

            first Examples and Code Snippets

            copy iconCopy
            const findKey = (obj, fn) =>
              Object.keys(obj).find(key => fn(obj[key], key, obj));
            
            
            findKey(
              {
                barney: { age: 36, active: true },
                fred: { age: 40, active: false },
                pebbles: { age: 1, active: true }
              },
              x => x['active']
            );  
            copy iconCopy
            const firstN = (arr, n) => arr.slice(0, n);
            
            
            firstN(['a', 'b', 'c', 'd'], 2); // ['a', 'b']
            
              
            Generate the first solution in a given path .
            pythondot img3Lines of Code : 51dot img3License : Permissive (MIT License)
            copy iconCopy
            def generate_first_solution(path, dict_of_neighbours):
                """
                Pure implementation of generating the first solution for the Tabu search to start,
                with the redundant resolution strategy. That means that we start from the starting
                node (e.g  
            Depth - first search .
            pythondot img4Lines of Code : 26dot img4License : Permissive (MIT License)
            copy iconCopy
            def depth_first_search(graph: dict, start: str) -> set[str]:
                """Depth First Search on Graph
                :param graph: directed graph in dictionary format
                :param start: starting vertex as a string
                :returns: the trace of the search
                >>&  
            Delete the first element from the list .
            pythondot img5Lines of Code : 26dot img5License : Permissive (MIT License)
            copy iconCopy
            def delete_head(self) -> Any:
                    """
                    Delete the first node and return the
                    node's data.
                    >>> linked_list = LinkedList()
                    >>> linked_list.insert_tail("first")
                    >>> linked_list.inse  

            Community Discussions

            QUESTION

            How to produce a point graph in R like this?
            Asked 2021-Jun-16 at 04:05

            I have basically this very odd type of data frame:

            The first column is the name of the States (say I have 3 states), the second to the last column (say I have 5 columns) contains some values recorded at different dates (not continuous). I want to create a graph that plots the values for each State on the range of the dates that starts from the earliest and end in the latest dates (continuous).

            The table looks like this:

            state 2020-01-01 2020-01-05 2020-01-06 2020-01-10 AZ NA 0.078 -0.06 NA AK 0.09 NA NA 0.10 MS 0.19 0.21 NA 0.38

            "NA" means there is not data.

            How do I produce this graph in which the x axis is from 2020-01-01 to 2020-01-10 (continuous), the y axis contains the changing values (as points) of the three States, each state occupies its separate (segmented) y-axis?

            Thank you.

            ...

            ANSWER

            Answered 2021-Jun-16 at 03:41

            You can get the data into a long format, which makes it easier to plot. R will make it difficult to read column names that start with a number. While reading the data, ensure that you have check.names = FALSE so that column names are read as is.

            Source https://stackoverflow.com/questions/67995623

            QUESTION

            Format values in a data frame
            Asked 2021-Jun-16 at 03:47

            Replace values from a column based on the following rule: t0345_0400_d2 = 03:45, or to keep only the first part of the value in time format. How can I do this?

            Data structure:

            Output:

            Sample data:

            ...

            ANSWER

            Answered 2021-Jun-16 at 03:47

            You can use sub to extract data in two capture groups and separate them by : -

            Source https://stackoverflow.com/questions/67996057

            QUESTION

            how to get jstree instance from iframe source?
            Asked 2021-Jun-16 at 03:07

            I have prepare 2 tree view in separate iframe using jstree. The right tree view should control the left tree view. When user click one one the list in right tree view, the respective item folder will open and selected on left tree view. I can make it happen using div in single page. I control the left tree view using instance of left tree view in right jstree div var instance = $('#left').jstree(true);.

            ...

            ANSWER

            Answered 2021-Jun-16 at 03:07

            I had used document.getElementById('1').contentWindow.jQuery('#left').jstree(true); to get instance from iframe with id='1'. In order to listen to right iframe(with id='2') if any menu has been clicked, I used document.getElementById('2').contentWindow.jQuery('#right').on("changed.jstree",function(e,data){}). I get the instance of left iframe within this function. By using this instance, I has deselect previous selection, select current selection, and open children of selected menu.

            index-12.html

            Source https://stackoverflow.com/questions/67933193

            QUESTION

            TypeError: unhashable type: 'numpy.ndarray' and plt.scatter()
            Asked 2021-Jun-16 at 02:51

            I am having issues with the plt.scatter() function. The error message says 'Type Error: unhashable type: 'numpy.ndarray''I want this code to create a scatter plot of the x and y dataframes. The two dataframes are the same size (88,2) when I enter a sample unit into the code.

            ...

            ANSWER

            Answered 2021-Jun-15 at 18:02

            Based on Matplotlib documentation here the inputs for plt.scatter() are:

            x, yfloat or array-like, shape (n, ) The data positions.

            But in your code what you're passing to the scatter function are two pd.DataFrame. So the first column are the names but the second columns are where the values stored:

            Source https://stackoverflow.com/questions/67990872

            QUESTION

            Element disappearing before it is supposed to
            Asked 2021-Jun-16 at 02:50

            Recently I've been coding a clicker game and now have run into a problem with the onclick function. What I'm trying to do is on the first click, have it change into certain text, and on the second and third clicks change it to a different text. However, on the fourth click, I'd like it to disappear.

            However, it disappears on the third click instead of the fourth click. The third click is supposed to show more text, and then call a function and vamoose. It just disappears. Here is my code:

            ...

            ANSWER

            Answered 2021-Jun-15 at 20:57

            I'm going to rewrite your code because it seems to be missing something.

            In this code, I'm using a single event handler. Then using a counter and switch statement to determine the current click count.

            Source https://stackoverflow.com/questions/67993314

            QUESTION

            Xarray (from grib file) to dataset
            Asked 2021-Jun-16 at 02:36

            I have a grib file containing monthly precipitation and temperature from 1989 to 2018 (extracted from ERA5-Land).

            I need to have those data in a dataset format with 6 column : longitude, latitude, ID of the cell/point in the grib file, date, temperature and precipitation.

            I first imported the file using cfgrib. Here is what contains the xdata list after importation:

            ...

            ANSWER

            Answered 2021-Jun-16 at 02:36

            Here is the answer after a bit of trial and error (only putting the result for tp variable but it's similar for t2m)

            Source https://stackoverflow.com/questions/67963199

            QUESTION

            Inner sub sub menus is not displaying
            Asked 2021-Jun-16 at 02:24

            I'm using collapse list unstyled class for showing submenus.In that sub sub menus are not showing, only first submenu is displaying but not the second one.

            ...

            ANSWER

            Answered 2021-Jun-16 at 02:24

            You need to make sure you include jQuery with bootstrap. You can add everything by adding this to your html:

            Source https://stackoverflow.com/questions/67995393

            QUESTION

            How strict is the mvc pattern with model and view interactions?
            Asked 2021-Jun-16 at 01:01
            I am confused about how model and view can interact

            I was making a simple to do app with mvc pattern and I saw an article which said you shouldn't pass the model values directly to the view, which made the project more complex than I thought (I am relatively new to programming and this is the first time I am trying out a design pattern).

            But then later on I talked to someone who said that that is not true and you can send the model data directly to view, he didn't even use classes or some kind of grouping to separate the function he just put them in separate files.

            I was wondering if there is a guideline that I couldn't find or we can do whatever we want as long as they are kind of separated. I would love an article or a guide to read up on as well.

            ...

            ANSWER

            Answered 2021-Jun-16 at 01:01

            Since, I am not 100% sure the context in which you are trying to apply the MVC pattern, a good generic explanation of MVC can be found in GoF's 1995 book, Design Patterns: Elements of Reusable Object Oriented Software.

            In the book, they state the following.

            The Model is the application object, the View is its screen presentation, and the Controller defines the way the user interface reacts to user input.

            A more robust explanation can be found from Martin Fowler where he also makes the case for a variation of Model View Controller that uses a Presentation Model.

            If you are referring to Spring MVC then there is some magic that blurs the lines a bit. But in general, you have a controller that represents some screen or an encapsulated piece of functionality that the user (web requests) interact with. The controller serves up responses that are derived from the domain, usually via a Spring Service (i.e. @Service). The domain (Model) doesn't know anything about the View and the View may or may not know anything about the domain.

            Given that, the View should be derived from the Model. But that's not always the case since sometimes how we present things to a screen is not the best logical way to model things in our domain - not to mention, the domain should be presentation agnostic. This leads into Fowler's argument for a Presentation Model, which is a model that belongs to the Presentation.

            I call this a Presentation Model because it's a model that is really designed for and thus part of the presentation layer.

            Microsoft took that idea and ran with it in a variant of MVC called MVVM (Model View ViewModel).

            You can read more about that in Microsoft's documentation on ASP.Net Core.

            So, back to your original question of "Should you pass the model directly to the view?" If you are using MVC then the controller is what provides the interaction. But if you're really asking, "Can you bind your view directly to the model?" If your model has all the stuff you need organized how your view needs it, then sure. And if it's simple enough, maybe that's the way to go. Otherwise, you could go with something like a Presentation Model or MVVM.

            Source https://stackoverflow.com/questions/67993373

            QUESTION

            repeat values of a column based on a condition
            Asked 2021-Jun-16 at 00:54

            I have a data frame including three columns named 'Altitude', 'Distance', 'Slope'. The column of 'Slope' is calculated using the two first columns 'Altitude', 'Distance'. @ the first step the purpose was to calculate 'Slope' using a condition explained below: A condition function was deployed to start from the top column of the "Distance" variable and add up (sum) values until the summation of them is greater or equal to 10 (>=10). If this condition corrects then calculate the "Slope" using the given formula: Slope=Average(Altitude)/(sum(Distance)). The summation of the 'Distance' was counting from the first value of that to the index that the 'Distance' has stopped there). The following code is for the above explanation (By Tim Roberts):

            ...

            ANSWER

            Answered 2021-May-19 at 13:38

            Use this code after you calculate s to get slope column with desired values:

            Source https://stackoverflow.com/questions/67602985

            QUESTION

            How do I set up healthprobe for a web application running on an Azure virtual machine?
            Asked 2021-Jun-16 at 00:05

            State of the application:

            • A single virtual machine which runs an apache server.
            • Application exposed via the virtual machine's public IP (not behind a loadbalancer)

            I have an healthprobe endpoint running that needs probed every few seconds to see if the app is up, and trigger an alert in case it is not.

            What are my options? I want to get the healthprobe up and running first, before I move to a virtual machine scale set and a load balancer.

            ...

            ANSWER

            Answered 2021-Jun-16 at 00:05

            Under Support+troubleshooting -> Resource health of your virtual machine portal panel, you can set up a health alert. You can then select under which conditions the alert should be triggered. In your case, Current resource status: Unavailable should work just fine. You can also implement a custom notification (E-Mail) under Actions or implement a logic that triggers an Azure Function or Logic App that performs an action when the VM is unavailable.

            To detect if your application in Apache server is working correctly you can use a monitoring solution that checks the Apache error logs.

            Source https://stackoverflow.com/questions/67947779

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

            Vulnerabilities

            No vulnerabilities reported

            Install first

            You can install using 'npm i first' or download it from GitHub, npm.

            Support

            For any new features, suggestions and bugs create an issue on GitHub. If you have any questions check and ask questions on community page Stack Overflow .
            Find more information at:

            Find, review, and download reusable Libraries, Code Snippets, Cloud APIs from over 650 million Knowledge Items

            Find more libraries
            Install
          • npm

            npm i first

          • CLONE
          • HTTPS

            https://github.com/DanielBaulig/first.git

          • CLI

            gh repo clone DanielBaulig/first

          • sshUrl

            git@github.com:DanielBaulig/first.git

          • Stay Updated

            Subscribe to our newsletter for trending solutions and developer bootcamps

            Agree to Sign up and Terms & Conditions

            Share this Page

            share link

            Consider Popular Reactive Programming Libraries

            axios

            by axios

            RxJava

            by ReactiveX

            async

            by caolan

            rxjs

            by ReactiveX

            fetch

            by github

            Try Top Libraries by DanielBaulig

            chat.io

            by DanielBauligJavaScript

            node-gettext

            by DanielBauligJavaScript

            sioe-demo

            by DanielBauligJavaScript

            Genetic-Algorithms

            by DanielBauligC#

            brainfuck.js

            by DanielBauligJavaScript