Questions

How to override !important?

I have created a custom style sheet that overrides the original CSS for my Wordpress template. However, on my calendar page, the original CSS has the height of each table cell set with the `!important...

16 Apr at 11:18

jQuery remove options from select

I have a page with 5 selects that all have a class name 'ct'. I need to remove the option with a value of 'X' from each select while running an onclick event. My code is: ``` $(".ct").each(function()...

16 Jan at 17:25

How do I show the schema of a table in a MySQL database?

From the [MySQL](https://www.mysql.com/) console, what command displays the schema of any given table?

27 May at 18:35

Read data from SqlDataReader

I have a SQL Server 2008 database and I am working on it in the backend. I am working on asp.net/C# ``` SqlDataReader rdr = cmd.ExecuteReader(); while (rdr.Read()) { //how do I r...

Pure CSS to make font-size responsive based on dynamic amount of characters

I know that this could be solved fairly easily with Javascript, but I'm only interested in a pure CSS solution. I want a way to dynamically resize text so that it always fits into a fixed div. Here ...

26 Jun at 11:3

ERROR 2003 (HY000): Can't connect to MySQL server on '127.0.0.1' (111)

I use the following command: ``` mysql -u root -h 127.0.0.1 -p ``` And the error message is: ``` ERROR 2003 (HY000): Can't connect to MySQL server on '127.0.0.1' (111) ``` How can I fix it?

30 Dec at 23:23

How can I get the index of an item in a list in a single step?

How can I find the index of an item in a list without looping through it? Currently this doesn't look very nice - searching through the list for the same item twice, just to get the index: ``` var oPr...

11 Jun at 20:32

How do I get the last four characters from a string in C#?

Suppose I have a string: ``` "34234234d124" ``` I want to get the last four characters of this string which is `"d124"`. I can use `SubString`, but it needs a couple of lines of code, including nam...

26 May at 16:22

Moving average or running mean

Is there a SciPy function or NumPy function or module for Python that calculates the running mean of a 1D array given a specific window?

23 Feb at 11:17

How to declare a variable in a template in Angular

I have the following template : ``` <div> <span>{{aVariable}}</span> </div> ``` and would like to end up with : ``` <div "let a = aVariable"> <span>{{a}}</span> </div> ``` Is there a way to do i...

16 Nov at 07:55

Can a foreign key be NULL and/or duplicate?

Please clarify two things for me: 1. Can a Foreign key be NULL? 2. Can a Foreign key be duplicate? As fair as I know, `NULL` shouldn't be used in foreign keys, but in some application of mine I'm...

11 Mar at 15:30

How can I use environment variables in docker-compose?

I would like to be able to use environment variables inside , with values passed in at the time of `docker-compose up`. This is the example. I am doing this today with a basic `docker run` command, wh...

17 Feb at 01:30

How do I log a Python error with debug information?

I am printing Python exception messages to a log file with `logging.error`: ``` import logging try: 1/0 except ZeroDivisionError as e: logging.error(e) # ERROR:root:division by zero ``` Is...

23 May at 15:16

How do I check if a string contains another string in Objective-C?

How can I check if a string (`NSString`) contains another smaller string? I was hoping for something like: ``` NSString *string = @"hello bla bla"; NSLog(@"%d",[string containsSubstring:@"hello"]); ...

14 Nov at 11:32

How do you append an int to a string in C++?

``` int i = 4; string text = "Player "; cout << (text + i); ``` I'd like it to print `Player 4`. The above is obviously wrong but it shows what I'm trying to do here. Is there an easy way to do thi...

22 Dec at 22:31

Change URL and redirect using jQuery

I have some code like this, ``` <form id="abc"> <input type="text" id="txt" /> </form> ``` and now I want to redirect like this, ``` var temp = $("#txt").val(); url = "http://example.com/" + tem...

14 Apr at 13:26

Find MongoDB records where array field is not empty

All of my records have a field called "pictures". This field is an array of strings. I now want the newest 10 records where this array IS NOT empty. I've googled around, but strangely enough I haven...

30 Oct at 20:51

Pandas: convert dtype 'object' to int

I've read an SQL query into Pandas and the values are coming in as dtype 'object', although they are strings, dates and integers. I am able to convert the date 'object' to a Pandas datetime dtype, but...

29 Dec at 09:10

Execution time of C program

I have a C program that aims to be run in parallel on several processors. I need to be able to record the execution time (which could be anywhere from 1 second to several minutes). I have searched for...

21 Nov at 06:37

Convert a timedelta to days, hours and minutes

I've got a timedelta. I want the days, hours and minutes from that - either as a tuple or a dictionary... I'm not fussed. I must have done this a dozen times in a dozen languages over the years but P...

22 Jan at 18:45

How do you convert a DataTable into a generic list?

Currently, I'm using: ``` DataTable dt = CreateDataTableInSomeWay(); List<DataRow> list = new List<DataRow>(); foreach (DataRow dr in dt.Rows) { list.Add(dr); } ``` Is there a better/magic wa...

16 Oct at 13:23

How to get the device's IMEI/ESN programmatically in android?

To identify each devices uniquely I would like to use the IMEI (or ESN number for CDMA devices). How to access this programmatically?

19 May at 06:21

pandas: multiple conditions while indexing data frame - unexpected behavior

I am filtering rows in a dataframe by values in two columns. For some reason the OR operator behaves like I would expect AND operator to behave and vice versa. My test code: ``` df = pd.DataFrame({'a'...

How does Git handle symbolic links?

If I have a file or directory that is a symbolic link and I commit it to a Git repository, what happens to it? I would assume that it leaves it as a symbolic link until the file is deleted and then i...

27 Oct at 10:1

target="_blank" vs. target="_new"

What's the difference between `<a target="_new">` and `<a target="_blank">` and which should I use if I just want to open a link in a new tab/window?

10 Feb at 23:54