neworder | A dynamic microsimulation framework for python | Data Manipulation library

I have an array or object which will serve as columns for a table with a unique key

I'm facing the exception

java.lang.IllegalAccessError: class org.mockito.Matchers tried to access private method 'void org.mockito.internal.progress.ThreadSafeMockingProgress.()' (org.mockito.Matchers and org.mockito.internal.progress.ThreadSafeMockingProgress are in unnamed module of loader 'app')

at org.mockito.Matchers.(Matchers.java:107)

when I try to use the matcher any() in mockito when() stub call. The class argument type is for "NewOrder" from the binance spot java library here

I'm trying to do

I'm creating an e-commerce shopping platform.

I've the following 3 entity classes:

1. ProductInventory

2. Orders

3. OrderedProduct

   @Entity @Getter @Setter @NoArgsConstructor @AllArgsConstructor public class ProductInventory {

   ...

Hello to everyone on SO! I rarely ask new questions since so much has already been said on this forum, but this time I cannot find enough material to get me through my performance issues.

I basically have survey data from which I want to compute various indicators at brand level. The trick is my need to create variations of my vectors for each element of the loop, by excluding all elements related to the i-th element tested. At this moment I have not found a way to vectorize my code. Consequently, my lapply loop is tediously slow (the slowest part of a bigger script, by far).

My dataset is 8 million rows long and I loop over 70 brands, so performance starts to matter at this point. See shorter reproducible example for your own tests:

(EDIT : Comments added to the script for better understanding.)

I have a dynamic form where users can add multiple products. I wonder how I could save the selected products' id.

In the console.log(fields, "fields");, this is where I can see the saved product. So how can I save the selected product id as well?

Any help would be appreciated. Thank you.

Codesandbox: https://codesandbox.io/s/react-hook-form-wizard-form-from-reddit-with-data-ouy64e?file=/src/fieldArray.js:322-4143

I'm developing an app which has to fetch new orders from the Firestore database, I used componentDidMount to refresh the screen every 10 seconds and launch the fetchNewOrders function, if new orders are available, the function should push that object into the state array newOrder, and display the orders in the FlatList below. When I start the code it returns the error TypeError: undefined is not an object (evaluating 'item.id'), I also wrote the example of an array I'm fetching from the database.

Screen

I'm developing the feature in which when the user type in the TextInputand it filters the items in the array data and shows in the FlatList the result of the search, at the moment it works when I start typing the first time I render the screen, but when I start cancelling the text in the TextInput and try again it just returns empty arrays, and nothing shows in the FlatList, and also in useEffect I get the same array twice.

Array

It is my first time working with useContext hook and I was trying to consume values with useContext in Navbar.js which I've provided in the parent component, but i'm receiving undefined only. In the Navbar.js when I console log user it showsundefined. I tried to pass the data as props and it works fine. It only happens when I try with Context API. I think I messed up my context api implementation.

1. Created a context at AuthContext.js

I have a .net core backend with SignalR and a react frontend. I have a basic hub set up with ConcurrentDictionary to manage connection ids: