Recent Questions - Stack Overflow |
- How to create a dictionary of string and delegate in C#
- How to match my dext with an USB device in DriverKit?
- AudioLibrary's and their own Targets
- How do I log an error thrown by the metamask browser extension?
- scipy optimization according to the experimental curve
- Problem while creating DataProc Cluster: Component ranger failed to activate post-hdfs
- how to create the expected array with given input?
- Exception fixing docBase for context - Error thrown but Successfull deployment
- Bootstrap modal is not working properly in angular 9
- Bot cannot grant itself MANAGE_ROLES without administrator?
- How to add references in dot net project
- Is there an R function to multiply select columns by a constant?
- How to add two shop pages?
- Unhandled Exception: MissingPluginException(No implemen tation found for method login on channel app.meedu/flutter_facebook_auth)
- Golang: Not able to fetch balance of Ethereum account in ganache
- Morra - Odds and Even
- How to add shadow to fixed column and fixed row using the UICollectionViewLayout for presenting the tabular data in Swift?
- Problem using lambda expression to be integrated using quad from mpmath
- Missing AWS Lambda trace data for X-Ray. Ensure Active Tracing is enabled and no subsegments are created outside the function handler
- JFrame is frozen by using a JComboBox
- How to load active class for link in react
- How can I write rust's log::Record into Rust's ::csv::Writer in a single pass?
- How to get a list of months from created_at column (List of months having data in database)
- Find records only all value are same in column otherwise return 0
- sys:1: ResourceWarning: unclosed socket <zmq.Socket(zmq.PUSH) at 0x7f8a5c016d60>
- How to extract kubernetes pod command execution result attributes
- Omit region from S3 pre-signed URL in aws-sdk-go-v2
- How to get the client id which is trying to bind my service in Android
- Coin Class HW assignment
- What is the limit of character to use in alt=“text” of img tag in html [duplicate]
| How to create a dictionary of string and delegate in C# Posted: 03 Mar 2022 05:14 AM PST In C#, I have a dictionary as below: var myActionDictionary = new Dictionary<string, Action(); myActionDictionary.add("Test1", Test1Method); where it will run a method that takes string as a parameter and returns void when I invoke it. private void Test1Method(string text) { return null;} How do I change create a dictionary so that it runs a method and returns a string? var myDelegateDictionary = new Dictionary<string, ???(); myDelegateDictionary.add("Test2", Test2Method); private string Test2Method(string text) { return text;} What do I write for ??? and how do I declare a delegate? thanks | ||||||||||
| How to match my dext with an USB device in DriverKit? Posted: 03 Mar 2022 05:14 AM PST I am writing a driverkit extension whose goal is to block USB devices, such as flash drives. As a starting point, I chose example project at https://developer.apple.com/documentation/driverkit/communicating_between_a_driverkit_extension_and_a_client_app?language=objc In effort not to disable a keyboard or a mouse, firstly I am trying to match my dext with a single concrete USB drive, whose vendorId I found in the registry (being aware of hexa to decimal conversions). The problem is that when the flash drive is plugged in, the system doesn't match my dext and continues with the system one. What's wrong? Is a provisioning profile required for this? Is it even possible to match any device this way? Driver's entitlement file: Info.plist: | ||||||||||
| AudioLibrary's and their own Targets Posted: 03 Mar 2022 05:14 AM PST Please help me with choice. I am interested in writing Audio Software with low-latency using C++. I want my app be cross-platform Linux, MacOS, Windows and it would be very cool if IOS and Android also. I have some candidates, such as JUCE framework, SDL2(audio), PortAudio. I don't want to use naked OS API's like CoreAudio,because it OS depending. Thanks. and if you have another libraries please feel free to enumerate them too. I tried to find information, but in general there isn't any info about direct comparison of both technologies. Please can you write the answer describing the most popular libraries for c++ and like their main purpose and so on. | ||||||||||
| How do I log an error thrown by the metamask browser extension? Posted: 03 Mar 2022 05:14 AM PST I'm trying to catch an error on Metamask before having to pay gas fees for the transaction and have the error message come to me. When the wallet pops up, the following error is displayed in the console but I'm not able to catch it anywhere. Here's a screenshot of what's popping up in the browser console. Would love some clarity on the same, thanks. | ||||||||||
| scipy optimization according to the experimental curve Posted: 03 Mar 2022 05:14 AM PST Good afternoon . My name is Artemy. tell me how to determine the unknown parameters in the calculated curve, using scipy optimization, having an experimental curve at the input. def func(a,b,c): return -a/(2*np.tan(c*(pi/2)))+np.sqrt(b+(a**2)/(4*np.tan((c)*(pi/2)))) file=experimental curve in .txt file pd_file=pd.read_csv(file, sep="\s+",header=None,names=['frequence', 'chi_strich_strich'], skiprows=1) xdata=pd_file['frequence'] ydata=pd_file['y'] popt, pcov = curve_fit(func, xdata, ydata, p0=[0.6,1], maxfev=500000000) print('popt',popt) ''' | ||||||||||
| Problem while creating DataProc Cluster: Component ranger failed to activate post-hdfs Posted: 03 Mar 2022 05:14 AM PST I am working in a Dataproc cluster setup to test all the features. I have created a cluster template and I've been using the creation command almost every day, but this week it stopped working. The error printed is: When I see the output that the message print, the error found is: The creation command that I ran is: I know that it's something related to Ranger/Solr setup, but I don't know how to increase this heap size without creating an alternative initialization script or creating a custom machine image. If you have any idea of how to solve this or need more information about my setup please let me know. | ||||||||||
| how to create the expected array with given input? Posted: 03 Mar 2022 05:14 AM PST Input: {1,1,2,3,3,4}(array can be dynamic) expected output:{{1,1},{2},{3,3},{4}} I created a 2d array and iterated the input using 'for' loop but got stuck after that. | ||||||||||
| Exception fixing docBase for context - Error thrown but Successfull deployment Posted: 03 Mar 2022 05:13 AM PST I have built a docker image based on tomcat base image and copying the MyExample.war file to tomcat/webapp folder in my custom dockerFile and built an image. It successfully deploys the war file and is able to run on my system with docker. But when i deploy the same image in kubernetes server. It deploys the application successfully. And the pod becomes up. But i see an error in the log as below. This error is not seen when i run it in local docker on my system, where as only on kubernetes cluster when i deploy it i see this error. But Application is deployed successfully after the error and i'm able to access the services. Also the time taken for tomcat to initialize and deploy the application is more than 5 minutes. Where as in local docker it is in seconds. DOn't know if this error is causing this delay. Any help will be appreciated. | ||||||||||
| Bootstrap modal is not working properly in angular 9 Posted: 03 Mar 2022 05:13 AM PST Hi I have lot of bootstrap modals in my project,Suddenly all of them having issues like fade screen is coming while opening any bootstrap modal .Please help me | ||||||||||
| Bot cannot grant itself MANAGE_ROLES without administrator? Posted: 03 Mar 2022 05:13 AM PST I have a bot that creates a channel and edits its permissions. This cannot be done without MANAGE_ROLES (manage permissions), but it cannot grant itself this permission without administrator. I can't see anything in the docs saying that this would be the case. However, removing this from the permission overwrites or leaving it in and giving it admin fixes the issue. The bot has ALL permissions except admin, is at the ABSOLUTE top of the hierarchy, and I've narrowed it down to just being MANAGE_ROLES that sets off the permission error without admin. | ||||||||||
| How to add references in dot net project Posted: 03 Mar 2022 05:13 AM PST I have a simple project mentioned below. Can somebody tell me how can I reference my classLibrary1 in classLibrary2, I right-clicked and tried adding reference but that isn't working since I am not able to use the method of classLibrary2 in classLibrary1 (I am inheriting the class of classLibrary1 in classLibrary2 as well) Why am I not able to see the References folder in classLibrary1 and classLibrary2? | ||||||||||
| Is there an R function to multiply select columns by a constant? Posted: 03 Mar 2022 05:13 AM PST I am a newcomer to R. I am working with a dataframe called control with 406 columns. I would like to multiply the 6th until the 395th column with a constant value, 0.9616. Is there a function with which I could do this? Thanks! | ||||||||||
| Posted: 03 Mar 2022 05:13 AM PST How can we add two separate shop pages on one wordpress website? Where both pages will display different set of products and will have different filters. | ||||||||||
| Posted: 03 Mar 2022 05:14 AM PST I'm getting the following error when I'm tring to sign in with facebook on android device by my flutter app : [ERROR:flutter/lib/ui/ui_dart_state.cc(209)] Unhandled Exception: MissingPluginException(No implementation found for method login on channel app.meedu/flutter_facebook_auth) E/flutter (29705): #0 MethodChannel._invokeMethod (package:flutter/src/services/platform_channel.dart:175:7) E/flutter (29705): E/flutter (29705): #1 FacebookAuthPlatformImplementation.login (package:flutter_facebook_auth_platform_interface/src/facebook_auth_implementation.dart:34:22) E/flutter (29705): | ||||||||||
| Golang: Not able to fetch balance of Ethereum account in ganache Posted: 03 Mar 2022 05:14 AM PST I am running ganache inside docker like - and it is running successfully (console output) - and using go-ethereum client to connect to ganache like - Upon running above code, it is connecting and calling eth_getBalance (checked ganache logs) successfully but output of this code is always However if I run ganache using its app image, my code is working correctly. Need help in identifying and fixing issues when running ganache inside docker. Thanks | ||||||||||
| Posted: 03 Mar 2022 05:13 AM PST Im writing a code that evolves the computer and I entering numbers and added them together to see who wins. There are three problems:
Any help would be grateful. Here's the code: | ||||||||||
| Posted: 03 Mar 2022 05:14 AM PST I want shadow to be there on first fixed column and first fixed row only and when I do scrolling horizontally and vertically. | ||||||||||
| Problem using lambda expression to be integrated using quad from mpmath Posted: 03 Mar 2022 05:14 AM PST I am trying to integrate an oscillatory expression with mpmath quad. The integral only has one variable but I need to evaluate it in a 2D space. I need the resulting function from the integral along kx to be evaluated for a group of coordinated in x and y that defined a plane. That's why I evaluate integral (x,y) as a test in a single point of that 2D array. This is the code I am using: I am getting the following errors when I try to evaluate the integral in an arbitrary point: I thought the error was because I wasn't defining the arguments in the integration as it has to be done with scipy.integrate.quad (as you can see in one of my last posts) but with mpmath I don't know what is generating this error. Thanks in advance for any help! | ||||||||||
| Posted: 03 Mar 2022 05:13 AM PST I have a lambda function which has written in NodeTS.I enabled the active tracing I can see the xray trace every time I called the function. This Lambda function also publishes to an SNS. I want to invoke the function locally, I follow this serverless-local-invoke and choose the
I am not sure how to silent my error. This is my lambda function This is my middyXRayEgressHttp | ||||||||||
| JFrame is frozen by using a JComboBox Posted: 03 Mar 2022 05:13 AM PST I am trying to remove a component from a Frame once a JComboBox is selected. But when I select one of the boxes the whole Frame freezes and you can't do anything other then resize or move it. It seems the EventQueue thread doesn't get stopped at all. Why is this happening? | ||||||||||
| How to load active class for link in react Posted: 03 Mar 2022 05:13 AM PST Created one simple tab for loading components, tabs are working fine but a "active" class loading for all Navlinks, on rendering. "active" class should load only for active tab. please help to fix this
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| How can I write rust's log::Record into Rust's ::csv::Writer in a single pass? Posted: 03 Mar 2022 05:14 AM PST The The next step is to use Rust's What would be the simplest way to do that in a single pass? | ||||||||||
| How to get a list of months from created_at column (List of months having data in database) Posted: 03 Mar 2022 05:14 AM PST Suppose i have the column below: What i need is an array of the months sth like : [03,04,06,08,11] Any thought of a good practice? Thanks in advance | ||||||||||
| Find records only all value are same in column otherwise return 0 Posted: 03 Mar 2022 05:14 AM PST I have the following table
From the above table I want to fetch records if name have same value as Gaurav. For example one row has name Ram so it should not return any thing. If all value is Gaurav then return id. | ||||||||||
| sys:1: ResourceWarning: unclosed socket <zmq.Socket(zmq.PUSH) at 0x7f8a5c016d60> Posted: 03 Mar 2022 05:13 AM PST I am running spyder in WSL on Ubuntu 18.04 LTS with XLaunch. When I run my code (no blank file, or anything), I get the following message in the console: What does this mean, and how can I fix it? I running Python Version 3.9.7 [GCC 7.5.0], Spyder 5.1.5, Ubuntu 18.04 LTS on WSL, Qt 5.9.7, PyQT5 5.9.2 Code (irrelevant, since everytime I f5 to run file, this happens): which returns | ||||||||||
| How to extract kubernetes pod command execution result attributes Posted: 03 Mar 2022 05:14 AM PST I am connecting to pod via client-Go and I want to get the properties of the file directory Execution Result Output Expect the result Is there a good way or a golang third-party library to handle it. Please let me know. Thank you | ||||||||||
| Omit region from S3 pre-signed URL in aws-sdk-go-v2 Posted: 03 Mar 2022 05:13 AM PST Recently I migrated a code base from aws-sdk-go v1 to v2. But I noticed a difference that it seems isn't described on the migration guide, the pre-signed URL generated between v1 and v2 has changed:
After some research, I found another Slack thread mentioning that v2 now uses sig4 which includes the region into the URL (here). My problem is that I need to use the old hostname version without the region because of a legacy code that depends on Here is the code I am using to generate the S3 pre-signed URL: | ||||||||||
| How to get the client id which is trying to bind my service in Android Posted: 03 Mar 2022 05:13 AM PST I have read thread in the below link. But this is too old and many said in various possiblities. How to get application package name or UID which is trying to bind my service from onBind function? I have altered the question according to my need. I have a bound service in an application and two clients will bind to my service using bindservice. when applications are tried to bind this service I want to know which application is trying to bind my service in onBind function? Is there any better possible ways in latest Android version to get the application name or UID which is trying to bind my service in onBind function? | ||||||||||
| Posted: 03 Mar 2022 05:14 AM PST So I am doing a Coin Flip Class program for class, and this code straight from the book is giving me errors in Pycharm and VSC. I have reread this 10 times and can not find the error to get the program to run. Trying to figure out if I am missing something, or the example source code is off. | ||||||||||
| What is the limit of character to use in alt=“text” of img tag in html [duplicate] Posted: 03 Mar 2022 05:13 AM PST Please tell me if there is any any specific number of characters that can be entered in an Is there a limit that should be kept in mind, for example, based on what screen readers support? |
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