Questions

How to check if a String contains another String in a case insensitive manner in Java?

Say I have two strings, ``` String s1 = "AbBaCca"; String s2 = "bac"; ``` I want to perform a check returning that `s2` is contained within `s1`. I can do this with: ``` return s1.contains(s2); ``...

3 Sep at 14:30

How do I check if PyTorch is using the GPU?

How do I check if PyTorch is using the GPU? The `nvidia-smi` command can detect GPU activity, but I want to check it directly from inside a Python script.

"CAUTION: provisional headers are shown" in Chrome debugger

I noticed a strange caution message when looking at downloaded resources using Google chrome inspector (): > Caution provisional headers are shown ![enter image description here](https://i.stack.img...

Is it possible to declare a variable in Gradle usable in Java?

Is it possible to declare a variable in Gradle usable in Java ? Basically I would like to declare some vars in the build.gradle and then getting it (obviously) at build time. Just like a pre-processor...

Loading local JSON file

I'm trying to load a local JSON file but it won't work. Here is my JavaScript code (using jQuery): ``` var json = $.getJSON("test.json"); var data = eval("(" +json.responseText + ")"); document.write(...

Warn user before leaving web page with unsaved changes

I have some pages with forms in my application. How can I secure the form in such a way that if someone navigates away or closes the browser tab, they should be prompted to to confirm they really wa...

8 Jan at 20:56

In Ruby on Rails, what's the difference between DateTime, Timestamp, Time and Date?

In my experience, getting dates/times right when programming is always fraught with danger and difficulity. Ruby and Rails have always eluded me on this one, if only due to the overwhelming number o...

What is the difference between Tomcat, JBoss and Glassfish?

I am starting to look into Enterprise Java and the book I am following mentions that it will use JBoss. Netbeans ships with Glassfish. I have used Tomcat in the past. What are the differences between...

Download File Using JavaScript/jQuery

I have a very similar requirement specified [here](https://stackoverflow.com/questions/1296085/download-file-using-jquery). I need to have the user's browser start a download manually when `$('a#some...

24 Jun at 23:8

Is there a JavaScript / jQuery DOM change listener?

Essentially I want to have a script execute when the contents of a `DIV` change. Since the scripts are separate (content script in the Chrome extension & webpage script), I need a way simply observe c...

What is the difference between unit tests and functional tests?

What is the difference between unit tests and functional tests? Can a unit test also test a function?

How do I get the last day of a month?

How can I find the last day of the month in C#? For example, if I have the date 03/08/1980, how do I get the last day of month 8 (in this case 31)?

12 Jun at 14:40

What should I set JAVA_HOME environment variable on macOS X 10.6?

Many Java applications that use shell scripts to configure their environment use the `JAVA_HOME` environment variable to start the correct version of Java, locate JRE JARs, and so on. In macOS X 10.6...

14 Apr at 09:49

What is the purpose of the dollar sign in JavaScript?

The code in question is here: ``` var $item = $(this).parent().parent().find('input'); ``` What is the purpose of the dollar sign in the variable name, why not just exclude it?

29 Mar at 02:39

How to log PostgreSQL queries?

How to enable logging of all SQL executed by PostgreSQL 8.3? I changed these lines : ``` log_directory = 'pg_log' log_filename = 'postgresql-%Y-%m-%d_%H%M%S.log' log_statement = '...

6 Jan at 13:9

How do I convert all strings in a list of lists to integers?

I have a tuple of tuples containing strings: ``` T1 = (('13', '17', '18', '21', '32'), ('07', '11', '13', '14', '28'), ('01', '05', '06', '08', '15', '16')) ``` I want to convert all the ...

29 Jul at 04:12

How to download a file from a URL in C#?

What is a simple way of downloading a file from a URL path?

15 Feb at 13:55

Get list of databases from SQL Server

How can I get the list of available databases on a SQL Server instance? I'm planning to make a list of them in a combo box in VB.NET.

8 Jul at 15:17

CORS: Cannot use wildcard in Access-Control-Allow-Origin when credentials flag is true

I have a setup involving Frontend server (Node.js, domain: localhost:3000) <---> Backend (Django, Ajax, domain: localhost:8000) Browser <-- webapp <-- Node.js (Serve the app) Browser (webapp) --> A...

@import vs #import - iOS 7

I am playing around with some of the new iOS 7 features and working with some of the Image Effects as discussed in the WWDC video "Implementing Engaging UI on iOS". For producing a blur effect within ...

30 Jul at 10:14

How to increase timeout for a single test case in mocha

I'm submitting a network request in a test case, but this sometimes takes longer than 2 seconds (the default timeout). How do I increase the timeout for a single test case?

26 Nov at 18:15

How do I install the yaml package for Python?

I have a Python program that uses YAML. I attempted to install it on a new server using `pip install yaml` and it returns the following: ``` $ sudo pip install yaml Downloading/unpacking yaml Coul...

18 Jan at 21:3

How can I add or update a query string parameter?

With javascript how can I add a query string parameter to the url if not present or if it present, update the current value? I am using jquery for my client side development.

5 Sep at 07:35

JavaScript: Object Rename Key

Is there a clever (i.e. optimized) way to rename a key in a javascript object? A non-optimized way would be: ``` o[ new_key ] = o[ old_key ]; delete o[ old_key ]; ```

28 Jul at 16:23

What are the practical factors to consider when choosing between Depth-First Search (DFS) and Breadth-First Search (BFS)?

I understand the differences between DFS and BFS, but I'm interested to know what factors to consider when choosing DFS vs BFS. Things like avoiding DFS for very deep trees, etc.