Latest Questions

"Warning: Cannot update a component" when creating a user with Firebase react hooks

In my React App I want to create a user with Firebase react hooks using createUserWithEmailAndPassword authentication but I get these errors. Error 1 POST http

JPA Query clause IN / Invalid relational operator

How to include the IN clause in the Query if the parameter is not null? If I try to put the ":ramos is null" it gives an error @Query(value = "SELECT r FROM Par

TreeView To JSON

From the JSON file, I was able to build a treeView in windows forms. Now I need to do the reverse process - save the tree to a JSON file after pressing the butt

Linear-Gradient not working on Android device (NativeScript 8)

I implemented a linear-gradient to an image in my NativeScript 8 app. it works fine on iOS but Android somehow has some issues with it. I also tried solutions l

Why can't I directly modify a component's state, really?

I understand that React tutorials and documentation warn in no uncertain terms that state should not be directly mutated and that everything should go through s

What is causing my R script text to disappear?

I've encountered a very bizarre problem with my R scripts. I had a bunch saved in a folder, and after reinstalling R (which was itself having some issues), the

Integrating HERE Maps with Flutter Typeahead package for search suggestions

I am using flutter_typeahead for showing place suggestions to users as they search using a text field and fetching these suggestions from HERE Maps. flutter typ

how to edit urls.py?

i need to create url with this path graphs/<direction>. The direction should be a string because it's the name of some department. i've tried to do this k

Can we duplicate a `Drawing` component in GitBook?

I thought I could just copy a Drawing component and paste it into another page to duplicate it, but I was wrong. When I edited the pasted drawing and returned b

Javascript share sessionStorage among tabs

I am using Javascript with Chrome and I need to share the sessionStorage content among different tabs. I know that i could use localStorage but I don't want to

Select products indiviudally in react js

the component holds a bootstrap cart inside and my button is rendered inside that cart to be specific. how to edit each one of the buttons individually enter im

How to load a 3D model with Collada using NASA Web World Wind?

I’ve been working with NASA’s World Wind library and I am currently trying to display a 3D model of a tree on top of the globe. I am following this

Unable to download data from Blob storage. Getting 404 returned

I'm using a Python Azure function which gets invoked when I add a blob to a storage container. The function is triggered ok, but I get a 404 response when tryin

Is there a solution for webpack Encore issue with symfony 5 in a host that doesn't support nodejs

My project is on symfony 5 / 6 and I use Webpack Encore, the upload of photos and files works perfectly on the local. But a problem appeared when I transferred

How to add if statement in arrow function

i'm a beginner in JS and was wondering what is the syntax of an arrow function with an if statement with a regular function such as function getStringLength(str

How to type unique letters only in input text box in html or react?

I want to create an input box that allows to type only a distinct alphabet letter in the input box ( No duplicate alphabet value, ONLY ONE) I looked up all the

When should I use Comparator vs Comparable?

I have a list of POJOs I need to sort somehow. I define a Comprator inside the POJO class and use it to sort the list. Is the following way correct/best practic

embedded character with reversed background

there are 'j' character that looks like this https://su-support.tinytake.com/msc/Njc2MjcwM18xOTM3OTc0Mg causing issues when importing into db. how to remove the

Polymorphic data transformation techniques / data lake/ big data

Background: We are working on a solution to ingest huge sets of telemetry data from various clients. The data is in xml format and contains multiple independent

Password validation with UserAttributeSimilarityValidator and CustomUser Django

I am trying to validate a password against CustomUser fields: email and full_name. All test validations are working except for UserAttributeSimilarityValidator,

Compare two nested dictionaries in python and find records that are not present in the other dictionary

I have written code to extract record information from a folder of old csv files into dictionary A and a folder of new csv files into dictionary B. The dictiona

How to add styles to individual elements in react using e.target, when a button is clicked?

I am trying to add styles to the inidividual elements. I want when an individual div( is clicked to make sure that the paragraph of the specific changes from d

Is Kubernetes Networking Smart Enough to Route ClusterIP Requests to Local Pod

I think the question has most of the information. If I have a Service that is a ClusterIP Service, and a Pod accesses that Service, since the load balancing is

jdbc template batch update with snowflake database is very slow

I have a spring boot application that connects to the Snowflake Database and uploads records (approx 50 columns of different data types). I am using JdbcTemplat

SwiftUI NavigationView popping when observed object changes

There are three views. Main view, a List view (displaying a list of locations) and a Content view (displaying a single location). Both the List view and the C

Circuit switched network

In setup phase of circuit switched network before dedicated path made how can setup request knows which way to go to reach destination? Is there any protocols?

Server for traffic redirection with static IP

I use app engine on google cloud for my webserver. The webserver must communicate with APIs to fetch all kind of data from clients. For a specific client, I nee

How to use FFmpeg to generate a pure black stream and push to RTMP by code in C++

I'm new in FFmpeg. I want to generate a pure black stream using FFmpeg, and I don't want to use the FFmpeg command. I know below command can work. ffmpeg -f lav

How to search for item in a list from MongoDB in react js?

I want to make a website where all my data come from MongoDB by fetch. In the search button, I want to get a single item by clicking the search button.

How does Firebase identify my application and prevent other apps from impersonating my app?

I have created a project in Firebase and registered my app. I send data messages to this app. I do not want to have any user authentication on my app. However,