Questions

How to get the browser language using JavaScript

> [JavaScript for detecting browser language preference](https://stackoverflow.com/questions/1043339/javascript-for-detecting-browser-language-preference) I want to detect the language of the ...

23 Jul at 16:59

How to detect when an Android app goes to the background and come back to the foreground

I am trying to write an app that does something specific when it is brought back to the foreground after some amount of time. Is there a way to detect when an app is sent to the background or brought ...

7 Feb at 19:50

How to allow access outside localhost

How can I allow access outside the localhost at Angular2? I can navigate at `localhost:3030/panel` easily but I can not navigate when I write my IP such as `10.123.14.12:3030/panel/`. Could you plea...

30 Jan at 13:23

Regular expression to match a dot

Was wondering what the best way is to match `"test.this"` from `"blah blah blah test.this@gmail.com blah blah"` is? Using Python. I've tried `re.split(r"\b\w.\w@")`

9 Oct at 12:32

Import data into Google Colaboratory

What are the common ways to import private data into Google Colaboratory notebooks? Is it possible to import a non-public Google sheet? You can't read from system files. The introductory docs link to ...

28 Oct at 05:53

Java: How to access methods from another class

I tried to simplify my predicament as much as possible. I have three classes: Alpha: ``` public class Alpha { public void DoSomethingAlpha() { cbeta.DoSomethingBeta() //? } } ``...

4 Jul at 23:39

How to implement a queue using two stacks?

Suppose we have two stacks and no other temporary variable. Is to possible to "construct" a queue data structure using only the two stacks?

23 Aug at 00:59

How can I unstage my files again after making a local commit?

I have executed the following command ``` git add <foo.java> git commit -m "add the foo.java file" ``` How can I delete my local commit now and unstage foo.java? If I type `git reset --hard`, I fo...

15 May at 14:52

VB.net Need Text Box to Only Accept Numbers

I'm fairly new to VB.net (self taught) and was just wondering if someone out there could help me out with some code. I'm not trying to do anything too involved, just have a `TextBox` that accepts a nu...

10 Dec at 05:57

uint8_t vs unsigned char

What is the advantage of using `uint8_t` over `unsigned char` in C? I know that on almost every system `uint8_t` is just a typedef for `unsigned char`, so why use it?

1 Mar at 18:55

Are HTTPS URLs encrypted?

Are all URLs encrypted when using TLS/SSL (HTTPS) encryption? I would like to know because I want all URL data to be hidden when using TLS/SSL (HTTPS). If TLS/SSL gives you total URL encryption then ...

29 Apr at 18:0

How to change a dataframe column from String type to Double type in PySpark?

I have a dataframe with column as String. I wanted to change the column type to Double type in PySpark. Following is the way, I did: ``` toDoublefunc = UserDefinedFunction(lambda x: x,DoubleType()) ...

Correctly determine if date string is a valid date in that format

I'm receiving a date string from an API, and it is formatted as `yyyy-mm-dd`. I am currently using a regex to validate the string format, which works ok, but I can see some cases where it could be a ...

20 Jun at 19:10

How do I initialize weights in PyTorch?

How do I initialize weights and biases of a network (via e.g. He or Xavier initialization)?

How many files can I put in a directory?

Does it matter how many files I keep in a single directory? If so, how many files in a directory is too many, and what are the impacts of having too many files? (This is on a Linux server.) Backgroun...

28 Feb at 06:4

How to find the operating system details using JavaScript?

How can I find the OS name and OS version using JavaScript?

Copy data from one column to other column (which is in a different table)

I want to copy data from one column to another column of other table. How can I do that? I tried the following: ``` Update tblindiantime Set CountryName =(Select contacts.BusinessCountry From contac...

15 Dec at 07:22

Replace X-axis with own values

I have a question regarding the command plot(). Is there a way to fully eliminate the x-axis and replace it with own values? I know that I can get rid of the axis by doing ``` plot(x,y, xaxt = 'n') ...

15 Jul at 06:55

Selecting text in an element (akin to highlighting with your mouse)

I would like to have users click a link, then it selects the HTML text in another element ( an input). By "select" I mean the same way you would select text by dragging your mouse over it. This has b...

27 Sep at 06:54

PHP - SSL certificate error: unable to get local issuer certificate

I'm running PHP Version 5.6.3 as part of XAMPP on Windows 7. When I try to use the Mandrill API, I'm getting the following error: > Uncaught exception 'Mandrill_HttpError' with message 'API call to ...

25 May at 23:26

Find out free space on tablespace

Our application has failed a few times because an 'ORA-01536: space quota exceeded for tablespace', and we would like to be able to prevent this by checking regularly the free space on the tablespace ...

6 Oct at 08:56

Using LINQ to concatenate strings

What is the most efficient way to write the old-school: ``` StringBuilder sb = new StringBuilder(); if (strings.Count > 0) { foreach (string s in strings) { sb.Append(s + ", "); }...

3 Dec at 05:4

Nested routes with react router v4 / v5

I am currently struggling with nesting routes using react router v4. The closest example was the route config in the [React-Router v4 Documentation](https://react-router.now.sh/). I want to split my a...

Youtube - downloading a playlist - youtube-dl

I am trying to download all the videos from the [playlist](https://www.youtube.com/watch?v=7Vy8970q0Xc&list=PLwJ2VKmefmxpUJEGB1ff6yUZ5Zd7Gegn2): I am using youtube-dl for this and the command is: `...

22 Aug at 14:16

Check if a string has white space

I'm trying to . I found this function but it doesn't seem to be working: ``` function hasWhiteSpace(s) { var reWhiteSpace = new RegExp("/^\s+$/"); // Check for white space if (reWhiteSp...

1 Mar at 16:19