Latest Questions

Hibernate not respecting column length attributes when creating uniqueness constraint

I have a simple properties tag creating a uniqueness constraint. <properties name="uniqueness_constraint" unique="true" update="true"> <property n

Displaying a stacked bar graph with nested lists

I am trying to display a stacked bar graph.I have 3 lists as shown below- totalpointperxaxis [6, 9, 13, 5, 14, 382, 26, 2, 45, 2] clusternamesList [['Cluster1'

wait statement without UNTIL clause not supported for synthesis: i wanted to delay my result by 10 ns seconds but this error keep showing

library IEEE; use IEEE.STD_LOGIC_1164.ALL; use IEEE.NUMERIC_STD.ALL; entity Four_bit_Multiplier is port ( Value1: in std_logic_vector(3 downto 0);

Bridge pattern - two examples comparison

I was wondering if both of examples (or neither of them) are bridge pattern. So the first one: class ButtonImpl { public: virtual void click() = 0; };

why does hexdump reverse the input when given "\xFF\x00"? [duplicate]

Why does hexdump print 00ff here? I expected it to print ff00 , like it got in stdin, but $ printf "\xFF\x00" | hexdump 0000000 00ff 0000002

Objects are not valid as a React child (found: [object Error]). If you meant to render a collection of children, use an array instead.]

i think the error is from the checkout screen but i just cant find the '<' which is make believe that the error origin is from node_modules can anyone find t

Moving the function templates definition to different translation unit resolves the ambiguity error

I was using function templates when I noticed that moving the definition of one of the function template to a different translation unit resolves the ambiguous

I want to combine the objects in the array, how should I change them?

const data = [ { productId: 6, productName: "pouch", productPrice: 29000, discountRate: 19, optionName: "13inch", optionPrice: 0,

One JList/JCheckBox combination not working

I am doing an exercise in a book where you have to test event handling. I have a JList with 3 font choices (Serif, SansSerif, and Monospaced) and two checkboxe

How to create a generic string of letters and numbers for "n" clusters in R to add in a dataframe?

I have this: df<-structure(list(x = c(-0.803739264931451, 0.852850728148773, 0.927179506105653, -0.752626056626365, 0.706846224294882, 1.0346985222527, -0.47

Not able show Top & bottom items in recyclerView

I am using recyclerview in my project but bottom items are not displayed in recyclerview. I tried ScrollView but my app is crashing it shows java.lang.IllegalSt

Laravel relationship HasMany

I keep multiple address records belonging to a user. but when i write with dd i can't access other table's data. Following my code: user Table id | name

OAuth2 with Google and Spring Boot - I can't log out

I've been trying to get a successful Oauth2 login with Google and Spring Boot for a while now. This only works partially. Why partly - because I can't manage th

forked process doesn't exit when parent invoke waitpid()

In this program 2 children process are forked, then one send string to another through pipe. When communication finished, the parent get stuck in waiting the ex

How to change mapping type on a very large ElasticSearch index?

I want to change an ElasticSearch mapped property from text to ip, but they are incompatible types. I know the accepted answer is to: create a new index with th

How to form tuple column from two columns in Pandas

I've got a Pandas DataFrame and I want to combine the 'lat' and 'long' columns to form a tuple. <class 'pandas.core.frame.DataFrame'> Int64Index: 205482

How to restrict ImageUpload size in Summernote, How to upload image to server in Angular 12

I have embedded Summernote Rich Text Editor in my project (Angular V12). I did not find documentation for Angular. I am Unable to restrict ImageUpload Size. and

How can I define custom operators to deal with Range of String.Index in Swift?

I find using String.Index really needs a lot of code in Swift, especially when it comes to methods of Range Swift doesn't have. Like in above code where I don't

No macro for Power Query in Excel 2013

I installed "Power Query" in Excel 2013. Works fine. However it doesn't support VBA. No code is generated when I try to make a macro with the macro recorder. Wh

MQTT instead of wss on browser

When I run this code with nodejs, it works fine both on wss(code commented) and mqtts protocol. However if I run this on browser, it only works with wss. I trie

How to get the dimensions of a word2vec vector?

I have run a word2vec model on my data list_of_sentence: from gensim.models import Word2Vec w2v_model=Word2Vec(list_of_sentence,min_count=5, workers=4) print(

Laravel chat app : Unable to deliver messages to a specific user

I have been trying to develop a chat app on Laravel with socket.io. Now, I am facing problem that is when a user is sending a message to a specific user, the me

use powershell to print a list of files inside a folder and its subfolders

i need to print all the files included in a folder and its subfolders. i tried with this command Get-ChildItem -Path 'c:\mypath\' -File -Recurse | Out-File -Fil

Flaskr tutorial ModuleNotFoundError No module named Flaskr

I am going through the flask tutorial up to the Test Coverage section. And after finishing writing all the test files listed in the tutorial documentation I get

Laravel backpack fields - select_from_array functionality

I am using laravel backpack. Have created a new Request form. Have created several fields to choose from using 'select_from_array': $this->crud->field('ra

Opacity Or Alpha issue - Different Look in screen and while export in Photos in swift

Hierarchy Of View ===> CTStickerView(UIView) -> RefenceView(UIView) -> LabelMakingView(UIView) -> StackView(UIView) Having a Multiple Labels When I

How to return value from a cell on an Excel spreadsheet in JavaScript

I've been trying to figure out a way to access an Excel Spreadsheet in JavaScript and return the values stored within the cells based on the row/column they're

Django Admin dependent DropDown HTML field

I have a Region and SubRegion ForeignKey in the Country Model. My SubRegion model also has a Region ForeignKey for the Region Model. I am having a hard time dis