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How to set the focus for a particular field in a Bootstrap modal, once it appears

I've seen a couple of questions in regards to bootstrap modals, but none exactly like this, so I'll go ahead. 11 Answers ...
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Simulate CREATE DATABASE IF NOT EXISTS for PostgreSQL?

I want to create a database which does not exist through JDBC. Unlike MySQL, PostgreSQL does not support create if not exists syntax. What is the best way to accomplish this? ...
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Create a list from two object lists with linq

I have the following situation 8 Answers 8 ...
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NPM cannot install dependencies - Attempt to unlock something which hasn't been locked

I've been trying to run an npm install on my package.json file, but I'm having a lot of trouble. It keeps saying "Error: Attempt to unlock XXX, which hasn't been locked" on all my dependences. Here's one of them: ...
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Optimise PostgreSQL for fast testing

I am switching to PostgreSQL from SQLite for a typical Rails application. 2 Answers 2 ...
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Clicking URLs opens default browser

I have loaded an external URL in my WebView . Now what I need is that when the user clicks on the links on the page loaded, it has to work like a normal browser and open the link in the same WebView . But it's opening the default browser and loading the page there? ...
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How to check if a variable exists in a FreeMarker template?

I have a Freemarker template which contains a bunch of placeholders for which values are supplied when the template is processed. I want to conditionally include part of the template if the userName variable is supplied, something like: ...
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OpenCV C++/Obj-C: Detecting a sheet of paper / Square Detection

I successfully implemented the OpenCV square-detection example in my test application, but now need to filter the output, because it's quite messy - or is my code wrong? ...
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Set breakpoint in C or C++ code programmatically for gdb on Linux

How can I set a breakpoint in C or C++ code programatically that will work for gdb on Linux? 6 Answers ...
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How to reverse a 'rails generate'

I want to delete all the files it created and roll back any changes made, but not necessarily to the database, but more to the config files. ...