Latest Questions

KeyError while reading a CSV file in Python

I am trying to plot the fall of an object (an optical fork to be precise) as a function of time in order to verify that the law of gravity is indeed 9.81. The d

Can you listen for SpringCamelContext status?

Using EventNotifierSupport, I can listen for CamelContextStartedEvent. However, I need to add one more root to the context, after all the other routes have alre

Can lambda be used instead of void operator?

I'm wondering about this c++11 example and using operator for algorithm functions (for_each, remove_if etc.). For example, I have 2 blocks: struct UpdateFunc {

WorkManager: java.lang.VerifyError: Verifier rejected class androidx.work.impl.OperationImpl

I'm trying to resuscitate an old codebase. In one of the activities, the enqueue() call represented in the code snippet below keeps crashing the app: WorkManage

Python: Reading a Windows generated csv with carriage return in column

I'm working on a Python program that needs to read csv files that are produced on a Windows 2012 server machine. The aim of the Python code is to give a min/max

Do I need this many blocks in my launch.json file?

I have had this launch.json file look this way for most of the time I have had my project. I am not entirely sure what the file's purpose is or what the specifi

Solidity storing timestamp/value data thats easily accessible

I have an interesting use case that I can't seem to solve. Problem: Tokens get X points per day. I want to freeze ERC721 tokens (they have IDs) for a certain pe

Mock grpc service in unit testing nestjs

I want write an unit test for my getAllGroups() method in mail.service.ts: public async getAllGroup(): Promise<{ id: number, name: string }[]> { try {

How to implement DocuSign for a marketplace app?

We are building a marketplace app similar to the Uber model. In this the service provider and end customers both register with the platform. Once they negotiate

ReactJS ARIA (Accessible Rich Internet Applications ) Integration

I am learning ReactJS and I want to implement ARIA elements so that website is accessible through Screen Reader. Are there any packages present to achieve this?

how to get image node offset from a FIT file (or .itb) file?

FIT (flattend image tree) is a kind of dtb (device tree blob) file containing some images node under /. It is used in u-boot program. For example, a dts (device

6- Write this client method using only the push(), top(), pop(), and isEmpty()

6- Write this client method using only the push(), top(), pop(), and isEmpty() methods: public static void reverse(ArrayStack stack) // reverses the contents

AWS DMS Error - Unable to use plugins to establish logical replication on source PostgreSQL instance

I'm getting this error trying to replicate a postgre database (not RDS) to another postgre database (also not RDS). I get this connection error but the endpoint

XmlMapper: read XML values without assigning a class for the created objects

I am trying to implement a multi language interface for my project and for this I want to load the data for the 3 languages from XML file. The problem is that w

Rspec test fails while rendering

For my user controller, while running the test cases I am facing render issue. It is redirecting to http://test.host/sign_in instead of rendering new. Controlle

Optimization: Attempting to declare variables in matrix format and exporting in excel format

I have price, cost, demand in different sheets of an excel workbook. Each of these have two dimensions such as Product and Location. Total number of columns(tim

Avalonia style selector doen't works on derived classes

I'm having an issue to style my custom control derived from button. I inherited the Button class to add a DependencyProperty to it: public class IconButton : Bu

Mocking a function in jest which returns Promise<string[] | never>

I'm using React+JEST to test an existing component. It has a function filterDeliveries like so : const filterEmptyDeliveries = (arr): Promise<string[] | neve

DDD Event storming alone

I'm trying to start my first DDD project but I have difficulty with choosing what should be aggregate and what bounded context. What is the way to define those.

Android Koin injected viewmodel with multiple same class parameters fails

I'm following the docs as stated her https://insert-koin.io/docs/reference/koin-android/viewmodel/#viewmodel-and-injection-parameters The only difference is my

I need to split array to sub arrays of similar values in python

lets suppose i have this queryset_array: queryset_array = [{"category":"a"},{"category":"a"},{"category:"b"},{"category":"b"},{"category":"c"},{"category":"c"}]

How to exclude weekends and holidays from finding the difference between two dates in python

I need to find the difference between 2 dates where certain end dates are blank. I am need to exclude the weekends, as well as the holidays when calculating the

In multi-stage compilation, should we use a standard serialisation method to ship objects through stages?

This question is formulated in Scala 3/Dotty but should be generalised to any language NOT in MetaML family. The Scala 3 macro tutorial: https://docs.scala-lang

Insert a png image in a matplotlib figure

I'm trying to insert a png image in matplotlib figure (ref) import matplotlib.pyplot as plt import numpy as np from matplotlib.figure import Figure from matplo

Randomize items in rmarkdown transparently

I have the following rmarkdown document: --- title: "Untitled" output: pdf_document date: '2022-04-28' --- ```{r setup, include=FALSE} knitr::opts_chunk$set(ec

Run Julia codes on a HPC server

I aim to run some Julia codes on a server (no complicated parallel processing involved) using a .pbs file (and qsub). It seems that I should first load module

Is there a way to configure the memory resources for Spark using Pyspark

I'm working on an ETL job with an SageMaker notebook that uses spark 2.4.0. After joining a couple of tables I keep getting the following errors: Update-- I was

Use Rails 6 I18n translations for custom/user-specific naming schemas

What I would like to do is utilize the I18n localization structure to handle organziation-specific naming schemas, independently of the users actual local. Some

Spring boot image container running in minikube not giving proper response

I am using a minikube from powershell (minikube start) I can do all the things successfully like creating the image of my spring boot rest API. Creating the con

How to call RedirectToAction in asynchronous Task methods?

I am using MVC aspnetcore dotnetcore 6.0 I do an authorization with a LoginController. When it is success i want to redirect the user into HomeController. But R