jQuery - Trigger event when an element is removed from the DOM

I'm trying to figure out how to execute some js code when an element is removed from the page: jQuery('#some-element').remove(); // remove some element from the page /* need to figure out how to...

Django: Serving a Download in a Generic View

So I want to serve a couple of mp3s from a folder in /home/username/music. I didn't think this would be such a big deal but I am a bit confused on how to do it using generic views and my own...

django app using amazon aws s3 storage in stead of DB?

I'm looking at django for a rapid prototype to a photo sharing app with an amazon aws s3 storage back end. However, as far as I can tell, Django is tailored toward the typical database MVC type of...

Rake db:test:prepare task deleting data in development database

Using a simple Rails sqlite3 configuration example in my config/database.yml for a Rails 3.2.6 app, I used to reset my development database, re-seed it, and prepare my test database simply by...

Alternative to GUID with Scalablity in mind and Friendly URL

I've decided to use GUID as primary key for many of my project DB tables. I think it is a good practice, especially for scalability, backup and restore in mind. The problem is that I don't want to...

Problems opening Vim from the command line? (Windows 8)

How do you install Vim such that it runs in the command line? I saw a post here and it said to make sure that [✓] Create .bat files for command line use was checked. I did make sure that it...

HTML5 image zoom in/out

I have been asked to find ways to do zoom in/out in HTML5. I am new to html5 and would like some direction on this. Is there anything specific in html5 that allows to do zooming? I have done some...

Camera Calibration with OpenCV - How to adjust chessboard square size?

I am working on a camera calibration program using the OpenCV/Python example (from: OpenCV Tutorials) as a guidebook. Question: How do I tailor this example code to account for the size of a...

Mixing of static and dynamic pages in CodeIgniter

I'm trying to mix static and dynamic content in a CodeIgniter 3.1 tailored website. I'm using the tutorial example given for the static content: $route['default_controller'] =...

How to specify null prop type in ReactJS?

I've got a prop on a ReactJS Component that's either null or an Immutable Map. At the bottom of my widget if I write: MyComponent.propTypes = { myMap:...

Inheriting Meta Class in Django Models

I have a question as newbie and I am looking for the concept related to inheritance of Meta class in Django classes. Following are the models and I would appreciate if someone can help me. class...

iOS difference between actual RAM and ProcessInfo.processInfo.physicalMemory stable?

I'm working on an App that needs to be tailored down on low memory devices. Available device memory would be given in swift by: ProcessInfo.processInfo.physicalMemory For instance: iPhone SE...

How to preview an ItemTemplate in the XAML designer

Say I have a simple ItemTemplate for a ListView <ListView ItemsSource="{x:Bind ListItems}"> <ListView.ItemTemplate> <DataTemplate x:DataType="local:TextItem"> <TextBlock...

How to tailor an NLTK chatbot's response using macro variables (Python)

I've been playing around with the NLTK package in Python, in particular nltk.chat.util. I have been able to create a few simple chatbots by defining my pairs e.g. if you say 'Hi' the chatbot will...

access remote files on server with smb protocol python3

I have a remote server with some files. smb://ftpsrv/public/ I can be authorized there as an anonymous user. In java I could simply write this code: SmbFile root = new SmbFile(SMB_ROOT); And get...

Is there a programmatic way to change user agent in Cypress.io?

I have some ad calls that are only made on mobile devices. In Chrome, I can use Device Mode and simulate a mobile device, and the resulting ad call from the server is correctly tailored to...

Python Format traceback

The goal is to print the traceback from a failed python script. I have referenced a ton of stack articles, but I can not find one tailored to my needs. The goal is to email the traceback when...

How do I download YouTube subtitles via Python Shell?

I've been trying to work out how to download YouTube captions via the API but the official instructions are tailored towards command line code whereas I'm trying to do this in Python...

wait for animation until complete in Selenium

I am facing an issue with waiting on animation until complete. So far it was enough to use selenium functions like wait.until(ExpectedConditions.... but now it is not possible. I have the...

Verify that a helper tool is installed

I'm writing a macOS app in Swift that needs a privileged helper tool -- wish the elevation wasn't necessary, but it looks like it is. I found this excellent example application especially tailored...

Xcode compile times: which Mac configuration delivers noticeable best performance?

I looked at the different configurations of Macs available: MacBook Pro, iMac and iMac Pro. Are the huge configurations of e.g. the iMac Pro (Xeon, 18 cores etc.) noticeable speeding up Xcode...

Python sum of number in array, ignoring sections of specific numbers

I am very new to Python and have been going through multiple tutorials to get better. I have straggled with one difficult problem and found a solution. But it feels, works very newbie like. I...

Get Current User in a Blazor component

I'm starting a new site with Blazor and Windows Authentication and need to identify the current user viewing the page/component. For a Razor Page, the current user name can be accessed with...

Is it possible to put lambda expressions into a map or list in C++?

@DanielLangr @luxun @cdhowie sorry for the XY problem. i am not sure i can explain well, but i try my best. the situation is almost like this: there is a base object "Worker" and some children....

AWS S3 to RDS Serverless Aurora (PostgreSQL) programatically

I'm looking for a solution that can daily ingest 6 to 8 tables in to RDS. The tables in question have specific key relations, so this should be incorporated in the database. Currently I'm having a...

Can I use pipenv to create two virtual environments, each with a different python version (i.e. 3.7 and 3.6)?

I would like to have two virtual environments, where one has a version of python 3.6 and the other has a version of python 3.7. This will allow me to hopefully complete my projects without...

Local scraper and cloud scraper returns different results

I tried to scrape instagram and getting different results. Function was deploing by command below. When I tried very simillar function from this video:...

React + Firebase authentication: creating a new user without changing the current logged in user

I have an admin area in my ReactJS app, and I need to allow admin to create users without changing the current logged in user. This question has already been asked and has an answer...

Unreal Engine 4 Blueprints - how to set branch condition on get actor of class

I have been working on a simple game in Unreal Engine 4. I am trying to make it so when a player is hit by a cube they take damage. However, I am stuck on creating a condition. I have previously...

IdentityServer 4 - Multiple tab login 400 error

I have a .net core 3.1 MVC IdentityServer4 application (A tailored quickstart app provided by the guys at Idsrv) which I use for authentication against a SPA which is built using the oidc-client...