raf | requestAnimationFrame polyfill library | User Interface library

 by   chrisdickinson JavaScript Version: 3.4.1 License: MIT

kandi X-RAY | raf Summary

kandi X-RAY | raf Summary

raf is a JavaScript library typically used in User Interface applications. raf has no bugs, it has no vulnerabilities, it has a Permissive License and it has low support. You can install using 'npm i raf' or download it from GitHub, npm.

requestAnimationFrame polyfill for node and the browser. Note: The stream/event emitter logic found in versions prior to 1.0.0 can be found in raf-stream.
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              raf has a low active ecosystem.
              It has 708 star(s) with 57 fork(s). There are 17 watchers for this library.
              There were 1 major release(s) in the last 12 months.
              There are 0 open issues and 15 have been closed. On average issues are closed in 90 days. There are no pull requests.
              It has a neutral sentiment in the developer community.
              The latest version of raf is 3.4.1

            kandi-Quality Quality

              raf has 0 bugs and 0 code smells.

            kandi-Security Security

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

            kandi-License License

              raf 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

              raf 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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            raf Key Features

            No Key Features are available at this moment for raf.

            raf Examples and Code Snippets

            Flutter Android 11 errno 1
            JavaScriptdot img1Lines of Code : 69dot img1License : Strong Copyleft (CC BY-SA 4.0)
            copy iconCopy
            
                    //getting the cache directory from path_provider
                    Directory dir = await getApplicationDocumentsDirectory();
            
                    final storage = Storage.FlutterSecureStorage();
                    String accessToken = await storage.read(key: "acce
            How do I get a NetcdfFile out of a byte array?
            Javadot img2Lines of Code : 12dot img2License : Strong Copyleft (CC BY-SA 4.0)
            copy iconCopy
            byte[] filebytes = retrieveFileBytes(clientFilepath);
            InMemoryRandomAccessFile raf = new InMemoryRandomAccessFile(clientFilepath, filebytes);
            
            NetcdfFile file = NetcdfFiles.open(raf, clientFilepath, null, null);
            Variable peakRetentionTime 
            framerate and monitor refresh rate causes lag
            JavaScriptdot img3Lines of Code : 89dot img3License : Strong Copyleft (CC BY-SA 4.0)
            copy iconCopy
            const expectedFrameRate = 60;
            obj.vx = 2 * (expectedFrameRate / 1000); // px per ms
            
            function animate(timestamp) {
              const dt = (timestamp - previous);
              previous = timestamp;
              
              update(dt);
              requestAnimationFram
            canvas2d: cancelAnimationFrame is not working
            JavaScriptdot img4Lines of Code : 203dot img4License : Strong Copyleft (CC BY-SA 4.0)
            copy iconCopy
            function animate() {
            
              ctx.clearRect(0, 0, canvas.width, canvas.height);
            
              // You're updating the 6 hexagons & calling "cancelAnimationFrame" in here
              hexagonArray.forEach((hexagon) => {
                hexagon.toggle();
              });
            
              // BUT... y
            Generating millions of random string in Java
            Javadot img5Lines of Code : 80dot img5License : Strong Copyleft (CC BY-SA 4.0)
            copy iconCopy
            import java.io.IOException;
            import java.nio.file.Files;
            import java.nio.file.Path;
            import java.nio.file.StandardOpenOption;
            import java.text.DecimalFormat;
            import java.text.DecimalFormatSymbols;
            import java.util.Random;
            import java.util.co
            Pdfbox signing - saveIncremental vs saveIncrementalForExternalSigning
            Javadot img6Lines of Code : 9dot img6License : Strong Copyleft (CC BY-SA 4.0)
            copy iconCopy
            externalSigning.setSignature(new byte[0]);
            
            int offset = signature.getByteRange()[1] + 1;
            
            RandomAccessFile raf = new RandomAccessFile(signedFile, "rw");
            raf.seek(offset);
            raf.write(Hex.getBy
            How to get the full stacktrace of a StackOverflowError without restarting the application
            Javadot img7Lines of Code : 37dot img7License : Strong Copyleft (CC BY-SA 4.0)
            copy iconCopy
            import sun.jvm.hotspot.debugger.Address;
            import sun.jvm.hotspot.runtime.VM;
            import sun.jvm.hotspot.tools.Tool;
            
            import java.io.IOException;
            import java.io.RandomAccessFile;
            
            public class ChangeVMFlag extends Tool {
                private static Strin
            Debugging in WebGL
            JavaScriptdot img8Lines of Code : 79dot img8License : Strong Copyleft (CC BY-SA 4.0)
            copy iconCopy
            
            function main() {
              // Get A WebGL context
              /** @type {HTMLCanvasElement} */
              var canvas = document.querySelector("#canvas");
              var gl = canvas.getContext("webgl");
              if (!gl) {
                return;
              }
            
            
              // setup GLSL program
              var program = 
            Create a file of a given size and type in java
            Javadot img9Lines of Code : 12dot img9License : Strong Copyleft (CC BY-SA 4.0)
            copy iconCopy
            File file = new File(basedir, filePath);
            file.getParentFile().mkdirs();
            RandomAccessFile raf = new RandomAccessFile(file, "rw");
            raf.setLength(sizeInBytes);
            byte[] magicHeader = new byte[4];
            magicHeader[0] = (byte)Integer.parseInt("50", 16
            Out of memory exception when decrypt large file using Cipher
            Javadot img10Lines of Code : 132dot img10License : Strong Copyleft (CC BY-SA 4.0)
            copy iconCopy
            import org.bouncycastle.jce.provider.BouncyCastleProvider;
            import javax.crypto.BadPaddingException;
            import javax.crypto.Cipher;
            import javax.crypto.IllegalBlockSizeException;
            import javax.crypto.NoSuchPaddingException;
            import javax.crypto.

            Community Discussions

            QUESTION

            Why isn't my throttled requestAnimationFrame running 60FPS on my 144hz monitor?
            Asked 2022-Apr-05 at 11:01

            I want to make my requestAnimationFrame run 60FPS regardless of monitors refresh rate so the game would run at the same speed on every monitor.
            Although it seems to work, when I try using chrome DevTools performance tab I can see the FPS being like -> 48, 72, 48, 72....

            Here is my throttled version of rAF

            ...

            ANSWER

            Answered 2022-Apr-05 at 10:59

            The TL;DR is, requestAnimationFrame() runs whenever it feels like. You can't really throttle it. If you want to try to do that, you should use setTimeout() or setInternal() instead. They'll be called closer to your throttled rate, usually +/- 4ms.

            Or you can do what you're doing, which is throttle when you take action, if you want. You'll see in DevTools whatever requestAnimationFrame() is being called at, but your function would only do the move() at 60FPS, or whatever rate best lines up with it. Though, this can create some clunkiness, since you may end up with much slower effective FPSthan what you want, if the intervals between each call by requestAnimationFrame() don't line up well with your target FPS.

            Usually a better approach is instead scale all of your changes, such as movement, by the delta of your time since the last call:

            Source https://stackoverflow.com/questions/71749977

            QUESTION

            javascript spinning wheel stop on spacebar press
            Asked 2022-Mar-21 at 10:06

            I have a javascript code that needs a bit of tweening so it will work correct.

            QUESTION 1 The spinning starts by SPACEBAR press. But i also want it to stop spinning when i press PRESSBAR. How can i do that?

            QUESTION 2 Is there a way to make the "spinning wheel" bigger in size?

            The original source code comes from: https://jsfiddle.net/lannymcnie/ych1qt8u/

            ...

            ANSWER

            Answered 2022-Mar-21 at 10:06

            add another event handler , and for bigger size change the var size which is set to 250 in ur example .

            Source https://stackoverflow.com/questions/71554907

            QUESTION

            Flutter Android 11 errno 1
            Asked 2022-Mar-06 at 10:42

            im downloading a pdf file in this address :

            ...

            ANSWER

            Answered 2022-Mar-06 at 10:42

            For anyone who still wonders how i fixed the issue, i used path provider to save the file in the cache and then after saving the file then i moved the file to downloads folder with the flutter_file_dialog package

            source code :

            Source https://stackoverflow.com/questions/68984682

            QUESTION

            Why do I have to use an anonymous function instead of passing an additional argument to `setTimeout`?
            Asked 2022-Feb-26 at 16:49

            I want to stop this requestAnimationFrame after 1 second:

            ...

            ANSWER

            Answered 2022-Feb-26 at 16:49

            The difference is the moment in time at which rAF is evaluated.

            Explanation

            Presumably, your code looks something like this:

            Source https://stackoverflow.com/questions/71273265

            QUESTION

            react-pixi Stage options.backgroundColor don't change with state
            Asked 2022-Feb-22 at 18:24

            State changes affect other React-Pixi Stage props, such as height or width. But, when I attempt to change the Stack options.backgroundColor, the backgroundColor does not change on state change.

            Here's my code:

            ...

            ANSWER

            Answered 2022-Feb-22 at 18:24

            I got an answer in the github issues: github.com/inlet/react-pixi/issues/325#issuecomment-1047944615

            Source https://stackoverflow.com/questions/71223213

            QUESTION

            requestAnimationFrame inside another requestAnimationFrame
            Asked 2022-Feb-20 at 18:57

            Let's say I have rAF scheduled inside another rAF.

            Component 1:

            ...

            ANSWER

            Answered 2022-Feb-18 at 01:41

            At the next repaint cycle.
            Think of requestAnimationFrame as setTimeout(cb, time_until_next_monitor_refresh).

            Before your callback is called, at the next monitor refresh, this time_until_next_monitor_refresh will be reset again to be a full frame-duration, so there is no way that an animation frame callback scheduled from another animation frame callback fires in the same painting frame*.

            Note that that's how the basic requestAnimationFrame loops work anyway, they schedule a callback which will itself schedule a new callback. That this scheduling is done from an other function doesn't change a thing (as long as it's all sync in the callback).

            *Well, browsers do have bugs...

            Source https://stackoverflow.com/questions/71154571

            QUESTION

            How to visualize Fourier series / Fourier coefficients?
            Asked 2022-Feb-14 at 19:09

            I'm currently having difficulties at visualizing Fourier series. I tried the same thing about three times in order to find errors but in vain.

            Now I even don't know what is wrong with my code or understanding of Fourier series.

            What I'm trying to make is a thing like shown in the following Youtube video: https://youtu.be/r6sGWTCMz2k

            I think I know what is Fourier series a bit. I can prove this by showing my previous works:

            (1) square wave approximation

            (2) parameter

            So now I would like to draw more complicated thing in a parametric way. Please let me show the process I've walked.

            ① From svg path, get coordinates. For example,

            ...

            ANSWER

            Answered 2022-Feb-14 at 19:09

            Hello myself!

            First, errors in your code...

            1. You did not consider a case where sequence of values come after drawing command. For example, your get_points function can't handle a case like h 0 1 2.

            2. Current get_points function can't handle second m drawing command. You need to manually join strings if you have multiple paths.

            3. You need to manually set m x y to m 0 0. Otherwise you can't see canvas drawing. (Maybe values are too too small to draw)

            Second, in brief, you can't draw a shape with rotating vectors having fixed magnitude, if you approximate f(t) in a xy plane. It's because what you approximated is not a shape itself, but shape's coordinates.

            Third, the reason you got weird shape when you tried to plot approximated data is at your approxFn() function.

            Source https://stackoverflow.com/questions/71057973

            QUESTION

            Combining Duplicate rows in pandas dataframe
            Asked 2022-Jan-11 at 23:57

            I have this dataframe in python df

            ...

            ANSWER

            Answered 2022-Jan-11 at 23:57

            QUESTION

            Log4J2 RollingFileAppender programatically
            Asked 2022-Jan-11 at 04:07

            I am working on instantiating and using log4J2 RollingFileAppender programmatically but unable to create an instance of a RollingFileAppender the call to build() method returns a null leading to a NullPointerException. Any idea on what is missing?

            ...

            ANSWER

            Answered 2022-Jan-11 at 04:07

            While debugging your configuration method, you should read the messages from the status logger. Even better, set its level to DEBUG (you can use -Dlog4j2.debug=true).

            You forgot to provide a name for your appender, hence the null:

            Source https://stackoverflow.com/questions/70648770

            QUESTION

            how would I convert CSV obtained from tab separated file into pandas dataframe
            Asked 2022-Jan-07 at 03:02

            I'm trying to convert the output of this code into a dataframe. The code takes a tab-separated txt file from AWS S3 and turns it into a csv

            ...

            ANSWER

            Answered 2022-Jan-07 at 03:02

            After set "txt" variable with s3 bucket contents, do this to load to dataframe:

            Source https://stackoverflow.com/questions/70601359

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

            Vulnerabilities

            No vulnerabilities reported

            Install raf

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

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          • HTTPS

            https://github.com/chrisdickinson/raf.git

          • CLI

            gh repo clone chrisdickinson/raf

          • sshUrl

            git@github.com:chrisdickinson/raf.git

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