Latest Questions

scala add _2 s in a list of Tuple 2

I have the following mutable Hashmap in Scala: HashMap((b,3), (c,4), (a,8), (a,2)) and need to be converted to the following: HashMap((b,3), (c,4), (a,10)) I

Annotation @Profile() doesn't work in Spring (not Boot) project

Annotation @Profile doesn't work or works wrongly. I want to get 7 beans: first-sixth and firstConfig. In package app.a I created three classes. package app.a;

Fastest add with repeated indices: np.add.at / sparse.csr_matrix?

Say I have a num_indices * n indices matrix (in range(m)) and a num_indices * n values matrix, i.e., m, n = 100, 50 num_indices = 100000 indices = np.random.ran

Solana. Need to export all addresses from the blockchain to the DB

I found a way: https://docs.solana.com/developing/plugins/geyser-plugins OR https://github.com/solana-labs/solana-accountsdb-plugin-postgres But for this need t

How do I add an Automatic ID to this Python Database?

I made this database, but I dont understand why the id part doesnt work. As an response I get this: [(None, 'Wilhelm der Erste', 1027, '09.09.1087', '1066-1087'

How to return Observable from Callback

I have a service in which I want to implement the logic of an SDK. From this SDK I want to call an event that returns a payload. I want to create a method in wh

Is there difference between `Class.newInstance()` and `Class()` in Kotlin?

Is there a any functional difference in Kotlin between those? class Foo { companion object { fun newInstance() = Foo() } } // Create new instance s

How do I connect the commands

So, this is my first script ever and I'm not an programmer. Infact, im an 15 year old student, so dont expect much from me, but I need to write a script to crea

Operations with decimal numbers from a C++ program

The IBM i standard library provides the _DecimalT class for working with decimal numbers. However, compared to working on this type from C or RPG programs, work

How can I write a commands in GitBash while npm live-server is working?

I just started working with Git Bash, so I'm trying to do some commands while npm live-server is working, but Git Bash doesn't react at all. I figured out that

Angular not passing object to html page

I am having issues with learning angular, I didn't use to have these problems before, but now when I do these demos things work great until I switch from using

how to install channels redis in django using pip without errors

I am trying to install channels redis module using pip but so far am still getting errors. I installed Microsoft c++ build tools as the error suggested but so f

Hypothesis library: strategy for the complement of some other strategy

I'm using the Hypothesis library for unit testing. With this library you don't hand-pick inputs, but you define the complete set of inputs for which you want to

Deploy, host and sideload Excel Office Addin - Error loading add-ins

I've been trying to develop and deploy an Excel Office Addin and I've run into a few issues. I've created an office addin by following the tutorials posted on y

How to test the purpose string of NSPhotoLibraryUsageDescription in iOS using Expo?

I've been struggling to verify if the purpose string for photo library access really is working as expected. It started with the application got rejected becaus

stdin to an emscripten, about how to continue input?

related to Providing stdin to an emscripten HTML program? function stdin() { if (i < input.length) { var code = input.charCodeAt(i); +

Create program that read the xml and create Java Objects from it. (something like Spring application context)

Hi there as I mentioned in title I want create program which read xml and create beans(Objects) from it. <beans> <bean id="person3" class="Person"

Failed to Build Wheel For Opencv

I upgraded wheel, pip, and setuptools all to the latest version, with the following command. pip3.9 install --upgrade pip setuptools wheel When I try to install

How to append python dictionary to text file

I tried the following the code import json final_key = ["letters", "words", "score"] final_list = [] letters_1=['U', 'I', 'J', 'T', 'D', 'F', 'S', 'H', 'J'] fin

Angular - Async pipe in ngIf and text binding will not display first emitted value

I have very simple component template: <button (click)="emitNextValue()">Next Value</button> <p *ngIf="text$ | async"> {{ text$ | async }}

error of function replay in DolphinDB: inputTables must be one or a tuple of non segmented tables|DataSources

error message: inputTables must be one or a tuple of non segmented tables|DataSources Usage: replay(inputTables, outputTables, [dateColumn], [timeColumn], [repl

Finding a file name from selected partial text

I grabbed someone else's code and tried multiple different functions to make it fit my needs. I use a Word document for PLC reports. I'm trying to take selected

Custom table name for a model in laminas

I've started learning laminas by reading it's documentation (Album model and table). I have a product model and I want to fetch the records but the problem is

How can I parse YAML with TAGs?

I have a YAML document like this: steps: - !<!entry> id: Entry-1 actions: [] - !<!replybuttons> id: ReplyButtons-langcheck foot

How to fix the plot using iteration through the subplots?

import pandas as pd import matplotlib.pyplot as plt df = pd.read_csv("population.csv") fig, axs = plt.subplots(nrows=2, ncols=2) for col, ax in zip(df.column

How implement differential privacy in federated learning

I'm beginner in federated learning. I try to add gaussian noise to gradient in client_updata. If anyone attempt to do , please teach me how to do. Thank you in

Trying to import vue2-google-maps in blade.php file

I'm was trying to import vue2-google-maps in my blade.php file but failed. Is there any possibility to to import vue2-google-maps in blade.php file. Following i

React-Typescript: Module '"react-router-dom"' has no exported member 'RouteComponentProps'

I have a project and with this project I have a login page and I want to use "RouteComponentProps", but I got this error: Module '"react-router-dom"' has no exp

Put each statement in if-clause on new line in Eclipse

In Eclipse formatter for Java how can I format if-statements like if (x != null && x.getSomething() != null && x.getSomething().getSomet

Creating a purrr map equivalent

I have a list of files like so: dput(files) list(ped_cv_outcomes_in_hospital_code_v20.csv = structure(list( icd_10_cm_code = c("I2101", "I2102", "I2109", "I