Error occurs and app getting crash in open the fragment from one click button

Java
I made the eCommerce website and i got the error at the time of purchasing because when i buy now the item than the payment integration work but its g...
2 years ago

findOne(id) Spring Repository returns null

Java
I get the id passed as parameter from the URL in my controller and then I want to be able to get the name of the user with that id. I have a UserServi...
2 years ago

Angularjs $broadcast once, $on twice

Javascript
It sends $broadcast once from the rootScope, but the listener ($on) gets called twice. The listener is in a controller and it uses $rootScope.$on ins...
2 years ago

jQuery object - Value = value + number - Doesn't work?

jQuery
I'm attempting to update a value in an object and set it to the current value + another number. So for instance, if an object's value is 5, I want it ...
2 years ago

find based filename autocomplete in Bash script

Linux
There is a command line feature I've been wanting for a long time, and I've thought about how to best realize it, but I got nothing... So what I'd li...
2 years ago

Why setInterval runs slower than expected?

Node.js
I expect in following code setInterval runs 100 times before setTimeout. var current = 0; var timer = setInterval(function(){ process.stdout.wri...
2 years ago

How to set custom error message with form_validation And CodeIgniter

PHP
i am newbie in CodeIgniter...and i am trying to do form validation for array input... the array name is pages[]. and i wrote: $this->form_validat...
2 years ago

How to Make Python remember a list created inside a function for future use

Python
Below is an iterative calculation of Fibonacci Sequence. def fibonacci(n): if n < 0: raise ValueError("invalid index!") if n=...
2 years ago

Image transparency and alpha when merging images with PHP

PHP
So I found some code on PHP Doc, and edited it slightly to merge two images I have. The image is then saved in a folder on the server. However there i...
2 years ago

Python: Check whether list is sequential or not

Python
Want a function / statement, to check whether all the values of mylist are sequential or not, which is hexadecimal list. For example: def checkmylist...
2 years ago

OpenCV python canny Required argument 'threshold2' (pos 4) not found

Python
I am trying to isolate text from an image with openCV before sending it to tesseract4 engine to maximize results. I found this interesting post and I...
2 years ago

Multiply specific columns of one matrix with specific columns of another matrix for many indices

R
I have two large matrices P and Q around (10k x 50k dim in both, but to test this yourself a random 10x10 matrix for P and Q is sufficient). I have a ...
2 years ago

Reset row selection for DT::renderDataTable() in Shiny R

R
I reproduced an example shiny app written by Yihui Xie (https://yihui.shinyapps.io/DT-rows/). The app uses DT::renderDataTable() which allows a row se...
2 years ago

Serving react-routes with Express

React JSX
I'm using react-router-dom and load components on rotes like this: <Switch> <Route exact path="/home" component={Home} /> ...
2 years ago

How to reference a composite primary key in SQL

SQL
I have created the following 3 tables using the following code. CREATE TABLE BUILDING( BUILDINGNO CHAR(2), BUILDINGWING VARCHAR2(15), BUILDINGLANE VA...
2 years ago

SQL joining tables and merging columns of different type

SQL
This may not be usual and probably is not good thing to do, but I would like to know if it is possible. So let's say I got two tables that look like t...
2 years ago

Swift button state info

Swift
the question is similar to "how to pass data from different viewController" but in this case i need another information, i know how to pass the data f...
2 years ago

CreateMeasurementGraphics issue

Vb.net
On a specific web server I'm taking the default printer and using it to create a device context for printing; I'm facing the following issue using Cre...
2 years ago

How i can find child in Firebase?

Android
I have a structure of Firebase database: DB -User --UID ----UsersMessages -------uniqueID -------textMessage -------typeOfMessage Code priva...
2 years ago

How to get control to other item in recyclerview?

Android
I have a horizontal recyclerView,when I clicked on each of the element,a LinearLayout inside it setVisibility(VISIBLE) ,this work fine. So what I wan...
2 years ago