Start of week for locale using Joda-Time

How do you determine which day of the week is considered the “start” according to a given Locale using Joda-Time? Point: Most countries use the international standard Monday as first day of...

Is there any advantage of using map over unordered_map in case of trivial keys?

A recent talk about unordered_map in C++ made me realize that I should use unordered_map for most cases where I used map before, because of the efficiency of lookup ( amortized O(1) vs. O(log n)...

How to correctly compute the length of a String in Java?

I know there is String#length and the various methods in Character which more or less work on code units/code points. What is the suggested way in Java to actually return the result as specified...

Display image from Graphviz without creating an intermediate file?

I would like to display a graph without writing a file first. Suppose I have a command foo that produces this on standard out: digraph foogrph { a -> b; a -> c; } What I would like to do...

How could I get the same result using “addEventListener” ('keyup', function), instead of using “onkeyup” as HTML attribute?

I found this original code. My concern is the validation of the regular expression. You can‘t type numbers because of the function: <form> <label for="username">Chosse a Username:</label> <input...

Karma error - Chrome have not captured in 60000 ms, killing

DEBUG LOG: E:\Projects\abb\Projects\WebApp\abb.web>karma start DEBUG [plugin]: Loading karma-* from E:\Projects\abb\Projects\WebApp\abb .web\node_modules DEBUG [plugin]: Loading plugin...

Should a Go package ever use log.Fatal and when?

I have so far avoided use of log.Fatal, but I recently co-incidentally discovered these questions; code-coverage and tests-using-log-fatal. One of the comments from the 100 code coverage questions...

How can I get the URL (with protocol and domain) in Django (without request)?

I want to send mails in a cron job. The mail should contain a link to my application. In cron job, I don't have a request object, and can't use request.build_absolute_uri(). AFAIK the site...

Using IntelliJ IDEA for project using Makefiles

An existing Java project uses makefiles (which in turn uses ANT). I want to work on this project using IntelliJ IDEA. However, no IntelliJ specific files, e.g. project files, should be checked in...

jboss as 7 Unable to connect to oracle 11.2.0.1.0

I am on jboss as 7 and i defined an oracle datasouce to oracle 11.2.0.1.0 when i use sql developer to connect to this database it works but throuw jboss it's impossible i've got this...

Clear/overwrite standard output in Python

Hi I'm trying to make a tic-tac-toe game in Python and I've run into a problem. As you can see on the picture it rewrites the playing board after input, what I want it to do is to clear the...

How do I convert a RawInput RAWKEYBOARD structure to a DirectInput DIK_ constant?

I am converting an application that currently uses DirectInput to use RawInput instead. (DirectInput is a largely deprecated API.) Unfortunately, despite RawInput being the recommended successor...

plotting multiple pandas series with different length in one chart

I have 10 Panda Series in all with different length, now I want to plot all 10 as box-plots in one chart where x-axis shows the series name. This would be a standard operation as described here if...

Selecting from objects within objects

I have an array of information in Powershell that is comprised of objects within objects. It goes down 4 objects deep. Is there a way to select a property from the bottom most object while...

Secure Erase of a Bash Environmental Variable

Suppose I have in a Bash shell script an environmental variable that holds a sensitive value (e.g. a password). How may I securely overwrite the memory that holds this variable's value before...

ISPConfig change "Document Root" for specific domain

How to change the Document Root for a specific domain/subdomain inside ISPConfig 3. I need to point my subdomain to a different directory than the standard client3 web6 roots. And in "ISPConfig 3"...

Row-wise iteration like apply with purrr

How do I achieve row-wise iteration using purrr::map? Here's how I'd do it with a standard row-wise apply. df <- data.frame(a = 1:10, b = 11:20, c = 21:30) lst_result <- apply(df, 1,...

Is there a way to flush the entire CPU cache related to a program?

On x86-64 platforms, the CLFLUSH assembly instruction allows to flush the cache line corresponding to a given address. Instead of flushing the cache related to a specific address, would there be a...

Contiguous hierarchical struct memory with fixed-size arrays in C#?

I have a task which in C would be trivial but which C# seems to make (intentionally?) impossible. In C I would pre-allocate the entire data model of my simulation, via structs set up as a single,...

explicit posix mode in dash

I usually work on CentOS 7 and a standard(?, /bin/sh automatically installed) shell handles an option set -o posix. but the option does not work a shell (/bin/sh) in Xubuntu. It says "no such...

Unable to create an instance of Java virtual machine, Jdeveloper 10g

I'm newbie. And I'm starting an Old version of JDeveloper; But I can't starting this version. In the first time: I have this dialog box. NOTE: I'm using cmder. Here the...

Terraform deletes old AWS Lambda Layer version instead of creating new

I created a AWS Lambda Layer and created terraform code which deploys it to AWS. I want it that everytime I create new version of layer it is deployed as a new version without deleting the old...

How to recognise digits using Firebase ML Kit custom model

My android app have a need to read the text in a image and I am using the Firebase ML Kit for that purpose, it works well for the text which is in standard Roman script but it completely fails to...

React: Anonymous export default vs. Named export default

Is there any performance hit, undesired side effects or preferred standard when exporting an anonymous React component versus a named component? anonymous component export import React from...

How to remove QTreeView indentation

I want to have a QTreeView without an indentation on the left side increasing at each nesting level. I tried setting QTreeView::setIndentation(0). It removes the indentations just as I want,...

ES2015 vs ESM2015

I want to understand the difference between ES2015 and ESM2015. I know that ES2015 is the ES^ standards but recently while compiling my Angular application using ng build I got the following :...

Can Blazor WebAssembly be incorporated into a .NET Framework 4.8 MVC site?

I've successfully done this with a .NET Core 5 Mvc app, delivering a separate Blazor WebAssembly SPA from a razor pages site. I'm using the tag helper and am manually referencing the...

Getting an out of memory error while using Create React App and Plotly.js

<--- Last few GCs ---> [972:000001913A837320] 40900 ms: Mark-sweep 2049.2 (2066.3) -> 2047.3 (2059.3) MB, 2062.9 / 0.1 ms (+ 179.6 ms in 113 steps since start of marking, biggest step 8.9 ms,...

SpringCloud 2020.0.2 upgrade generates testing error

I'm trying to upgrade a project from SpringCloud BOM 2020.0.1 to 2020.0.2 When I change the BOM and re-build, I get an error in JUnit tests, saying that the new parameter spring.config.import is...

Laravel application hang on Google Cloud Run but runs fine on home setup

I am testing out Google Cloud Run as a platform to run a new project. Project is developed using NodeJS and Laravel. Created a docker images based on php-fpm. This image runs fine on my dev...