arrow | Lightweight library toolbox for Java and Android Development

 by   android10 Java Version: Current License: Apache-2.0

kandi X-RAY | arrow Summary

kandi X-RAY | arrow Summary

arrow is a Java library. arrow has no bugs, it has no vulnerabilities, it has build file available, it has a Permissive License and it has low support. You can download it from GitHub.

Arrow is Lightweight library toolbox for Java and Android Development.

            kandi-support Support

              arrow has a low active ecosystem.
              It has 450 star(s) with 39 fork(s). There are 19 watchers for this library.
              It had no major release in the last 6 months.
              There are 6 open issues and 3 have been closed. On average issues are closed in 13 days. There are 2 open pull requests and 0 closed requests.
              It has a neutral sentiment in the developer community.
              The latest version of arrow is current.

            kandi-Quality Quality

              arrow has 0 bugs and 0 code smells.

            kandi-Security Security

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

            kandi-License License

              arrow is licensed under the Apache-2.0 License. This license is Permissive.
              Permissive licenses have the least restrictions, and you can use them in most projects.

            kandi-Reuse Reuse

              arrow releases are not available. You will need to build from source code and install.
              Build file is available. You can build the component from source.
              Installation instructions are not available. Examples and code snippets are available.
              arrow saves you 1001 person hours of effort in developing the same functionality from scratch.
              It has 2276 lines of code, 352 functions and 34 files.
              It has medium code complexity. Code complexity directly impacts maintainability of the code.

            Top functions reviewed by kandi - BETA

            kandi has reviewed arrow and discovered the below as its top functions. This is intended to give you an instant insight into arrow implemented functionality, and help decide if they suit your requirements.
            • Returns the element at a specific position in an iterable
            • Advances the iterator by the given number of elements
            • Advances the element at the specified position
            • Returns the next element
            • Attempts to compute next state
            • Returns whether there are more tasks to compute next
            • Gets the contents of two arrays
            • Creates a new array with the specified element
            • Returns an unmodifiable iterable containing all the elements of the specified type
            • Returns an iterable containing only elements that satisfy the given predicate
            • Determines whether two iterables are equal
            • Determines whether two iterators are equal
            • Creates an instance of the toString helper
            • Returns the simple name of the given class
            • Returns the list at the specified index
            • Returns the number of elements in the list
            • Splits an iterable into unmodifiable sublists
            • Partitions an iterator into an unmodifiable iterator
            • Creates a new immutable LinkedList instance
            • Returns a new joiner that will skip null elements
            • Splits an iterable into an unmodifiable sublist
            • Returns the last element of an iterable
            • Returns a copy of this joiner that uses the provided null text
            • Removes the first element matching the given predicate
            • Returns an Iterable over all present instances in the supplied collection
            • Generates a hash code for the given objects
            Get all kandi verified functions for this library.

            arrow Key Features

            No Key Features are available at this moment for arrow.

            arrow Examples and Code Snippets

            Arrow Functions
            npmdot img1Lines of Code : 116dot img1no licencesLicense : No License
            copy iconCopy
            // bad
            [1, 2, 3].map(function (x) {
              const y = x + 1;
              return x * y;
            // good
            [1, 2, 3].map((x) => {
              const y = x + 1;
              return x * y;
            // bad
            [1, 2, 3].map((number) => {
              const nextNumber = number + 1;
              `A string containing the $  

            Community Discussions


            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.



            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:



            Div with absolute width is smaller than specified
            Asked 2021-Jun-15 at 20:37

            I am trying to have a number of columns with exact widths, and their heights split evenly between some number of elements. For some reason, despite my indicating an exact 200px width on each column, they are instead getting a computed width of 162px somehow. Chrome dev tools is showing some weird arrow thing indicating that it it was shrunk from it's intended size for some reason. I've even tried removing all of the content from the div's as possible so as to rule out some weird interaction with the size of children.

            The html for the relevant area is this:



            Answered 2021-Jun-15 at 20:20

            Setting display: flex turns the sizing of child elements over to the flex container. If you don't want the individual elements to resize, set flex-grow: 0, flex-shrink: 0, and flex-basis: 200px. You can do all three using the flex shorthand:



            Qt - trying to align two GroupBoxes in a layout
            Asked 2021-Jun-15 at 17:18

            A part of my form contains QGroupBox (Status Box) with 4 child QGroupBoxes arranged in a grid layout (2x2). Two bottom QGroupBoxes (Widget 1 Box and Widget 2 Box) contain widgets of fixed size (with set minimumSize and maximumSize) so they're non-resizable at all in both directions. Because of that rigid size constraints top row of QGroupBoxes (Summary Box and Helper Box) can only be resized in vertical direction.

            And here comes the troublesome part. Top-left QGroupBox (Summary Box) have grid layout 5x3 while top-right (Helper Box) have vertical layout with 6 rows. If I have naive widget placement as shown on picture 1 Qt is enlarging vertical size of both labels in top row to make height of both QGroupBoxes equal (see red arrows on picture 1).

            This is definitely that I don't want so I've added vertical spacer to the bottom of Summary Box and from the first glance it worked (picture 2). But only from the first glance... What you see is the minimum height of my whole form and the bottom side of spacer and last QCheckBox in the Helper Box seems to be aligned.

            If I'm expanding my form vertically this spacer grows a bit and that causes the increase of height of both top QGroupBoxes. As a result spacing between QCheckBoxes increases too and we can also see that top and bottom spacing are unequal for the top-right box (see red arrows on picture 3).

            I've tried to play with sizeType for my vertical spacer. If I set it to Minimum or MinimumExpanding then the spacer doesn't grow on resize (and doesn't shrink, too) but it appears to be expanded to the size as on picture 3 (corrupting spacings between QCheckBoxes too). If I set it to Maximum, Preferred or Expanding then I observe the same behavior as described above for picture 3.

            What is the proper way to achieve alignment for two QGroupBoxes in a row of grid without affecting spacing between elements (e. g. in that case make vertical spacer to fit only single row of grid layout and never expand/shrink)?



            Answered 2021-Jun-15 at 17:18

            Items will be aligned if both QGroupBoxes have same count of children and each row have at least one child with Expanding vertical policy. Instead of spacer use QWidget

            I removed unrelated widgets and reduces number of rows to 4 for demonstration purposes (less xml).



            Tkinter Scrollbar Doesnt Work On Mouse Button Click
            Asked 2021-Jun-15 at 17:14

            In tkinter I have made a notepad and also added a scrollbar to this notepad. The problem is when I click on the scrollbar (not using any arrow keys nor mouse scroll wheel)

            I have tried google but I'm not the best at finding the right websites.

            Heres the code to the notepad



            Answered 2021-Jun-15 at 17:13

            In your code, you aren't using the Listbox. So, I suggest to remove that part completely and do this.



            React Router Link changes URL but doesn't render Component - Rest Countries API
            Asked 2021-Jun-15 at 17:07

            I am building an app following the Rest Countries API challenge from frontendmentor ( I have run into a problem. When clicking on the router link in countryDetail.js, the url changes but the component doesn't get re-rendered unless the page is refreshed.




            Answered 2021-Jun-15 at 17:07

            The issue seems to be that you are already on the "/country/:name" path and are clicking to visit another country. The router correctly updates the URL in the address bar, but because CountryDetail is already mounted it neglects to recompute the item and allCountries state. This is because the useEffect hook only runs once when the component mounts.


            The name param ( is actually a dependency for the GET requests, it should be added to the useEffect hook's dependency array.



            Not getting Cascadia Code PL in Powershell
            Asked 2021-Jun-15 at 15:24

            I wanted to get started with posh and oh-my-posh so I installed them according to this article. Microsoft docs. I got the theme but the edges didn't had that arrow(that coolness).

            I then downloaded the windows terminal and edited the setting.json there with



            Answered 2021-Feb-19 at 17:57

            If I understand correctly, there are two parts to the question.

            Changing the PowerShell Window Font

            To do this, right-click your PowerShell window and head to "Properties"

            There, you can choose the header "Font" and change your font to Cascadia Code PL".

            This should fix the problem. If you still experience some weird characters, you might need to install a Nerd Font instead.

            Changing the VS Code Terminal Font

            To use the font in the VS Code Terminal, head to Settings.

            Searching for "integrated terminal font family" should bring up the setting you need to edit. Here, add your font 'Cascadia Code PL' on the very front of the setting and save.

            Integrated:Font Family"" />

            You should now be able to open a terminal and use the PL prompt.



            How to disable ESLint during build phase in React
            Asked 2021-Jun-15 at 14:34

            I'm using create-react-app and have configured my project for eslint. Below is my .eslintrc file.



            Answered 2021-Jun-15 at 12:54

            You can do it by adding DISABLE_ESLINT_PLUGIN=true to the "build" in the "scripts" part in your package.json:



            TypeError: Cannot read property 'name' of undefined - Fetching data from restcountries API
            Asked 2021-Jun-15 at 12:29

            I am building an app following the Rest Countries API challenge from frontendmentor. I have run into a problem. When trying to find the border countries full name using the alpha3code, I get the error : TypeError: Cannot read property 'name' of undefined.



            Answered 2021-Jun-15 at 10:55

            This may not answering your question but have you tried console.log( before setItem( to check the data you get from axios.get? sometimes console.log can help



            how to append element in another each specific element
            Asked 2021-Jun-15 at 12:14

            so I have a button to create/ append step div and each step has an add action button element.

            Question: how do I append action in a specific step for example if I add new action in step 2 then it will only create a new action in step 2

            Here is the link to what i did

            so what i did to create new step is :



            Answered 2021-Jun-15 at 12:14

            Whenever actionmodal is open you can save the index() of div which has open that modal inside data-attribute . Then , when appendaction button is clicked get the data-attribute and then use $(".steplist .input-group:eq(" + row_no + ")").. to add new data inside your input-group div.

            Demo Code :



            Dropdown in custom Alertdialog doesn't show any items (Kotlin)
            Asked 2021-Jun-15 at 12:10

            I wanted to create a custom Alertdialog Layout with a dropdown list and a few other things. I'm using Kotlin and I'm pretty new to it Currently I'm stuck at the dropdown list as it doesn't show anything

            Here is the Layout.xml:



            Answered 2021-Jun-15 at 12:10

            You're calling findViewById on your current Activity, which doesn't contain Therefore I suspect you'll see

            val pizzaDropdown = findViewById(

            return null.

            Try something like this:


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


            arrow-kt Arrow before 0.9.0 resolved Gradle build artifacts (for compiling and building the published JARs) over HTTP instead of HTTPS. Any of these dependent artifacts could have been maliciously compromised by an MITM attack.
            It was discovered that the C++ implementation (which underlies the R, Python and Ruby implementations) of Apache Arrow 0.14.0 to 0.14.1 had a uninitialized memory bug when building arrays with null values in some cases. This can lead to uninitialized memory being unintentionally shared if Arrow Arrays are transmitted over the wire (for instance with Flight) or persisted in the streaming IPC and file formats.
            While investigating UBSAN errors in it was discovered Apache Arrow versions 0.12.0 to 0.14.1, left memory Array data uninitialized when reading RLE null data from parquet. This affected the C++, Python, Ruby and R implementations. The uninitialized memory could potentially be shared if are transmitted over the wire (for instance with Flight) or persisted in the streaming IPC and file formats.

            Install arrow

            You can download it from GitHub.
            You can use arrow like any standard Java library. Please include the the jar files in your classpath. You can also use any IDE and you can run and debug the arrow component as you would do with any other Java program. Best practice is to use a build tool that supports dependency management such as Maven or Gradle. For Maven installation, please refer For Gradle installation, please refer .


            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:

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          • HTTPS


          • CLI

            gh repo clone android10/arrow

          • sshUrl


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