Questions

How to use LINQ to select object with minimum or maximum property value

I have a Person object with a Nullable DateOfBirth property. Is there a way to use LINQ to query a list of Person objects for the one with the earliest/smallest DateOfBirth value? Here's what I start...

5 Apr at 14:10

Add new attribute (element) to JSON object using JavaScript

How do I add new attribute (element) to JSON object using JavaScript?

26 Mar at 08:49

How to deal with "java.lang.OutOfMemoryError: Java heap space" error?

I am writing a client-side application (graphical font designer) on . Recently, I am running into `java.lang.OutOfMemoryError: Java heap space` error because I am not being conservative on memory usa...

24 Oct at 14:58

What are iterator, iterable, and iteration?

What are "iterable", "iterator", and "iteration" in Python? How are they defined?

The Use of Multiple JFrames: Good or Bad Practice?

I'm developing an application which displays images, and plays sounds from a database. I'm trying to decide whether or not to use a separate JFrame to add images to the database from the GUI. I'm ju...

22 Jul at 04:16

Why do some functions have underscores "__" before and after the function name?

This "underscoring" seems to occur a lot, and I was wondering if this was a requirement in the Python language, or merely a matter of convention? Also, could someone name and explain which functions ...

How can I shuffle an array?

I want to shuffle an array of elements in JavaScript like these: ``` [0, 3, 3] -> [3, 0, 3] [9, 3, 6, 0, 6] -> [0, 3, 6, 9, 6] [3, 3, 6, 0, 6] -> [0, 3, 6, 3, 6] ```

23 May at 11:47

Writing unit tests in Python: How do I start?

I completed my first proper project in Python and now my task is to write tests for it. Since this is the first time I did a project, this is the first time I would be writing tests for it. The ques...

30 Jul at 12:10

How do I hide an element when printing a web page?

I have a link on my webpage to print the webpage. However, the link is also visible in the printout itself. Is there javascript or HTML code which would hide the link button when I click the print li...

14 Oct at 11:14

C# Set collection?

Does anyone know if there is a good equivalent to Java's `Set` collection in C#? I know that you can somewhat mimic a set using a `Dictionary` or a `HashTable` by populating but ignoring the values, b...

22 Aug at 10:13

getResources().getColor() is deprecated

Using: `buildToolsVersion "22.0.1"` , `targetSdkVersion 22` in my gradle file. I found that the useful `getResources().getColor(R.color.color_name)` is deprecated. What should I use instead?

how to delete all commit history in github?

I want to delete all commit history but keep the code in its current state because, in my commit history, there are too many unused commits. How can I do it? Is there any git command can do this? `...

11 Feb at 17:30

Convert a date format in PHP

I am trying to convert a date from `yyyy-mm-dd` to `dd-mm-yyyy` (but not in SQL); however I don't know how the date function requires a timestamp, and I can't get a timestamp from this string. How is...

25 Sep at 17:43

How can I pad a value with leading zeros?

What is the recommended way to zerofill a value in JavaScript? I imagine I could build a custom function to pad zeros on to a typecasted value, but I'm wondering if there is a more direct way to do th...

27 Apr at 13:16

Seeding the random number generator in Javascript

Is it possible to seed the random number generator ([Math.random](https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Math/random)) in JavaScript?

Why are mutable structs “evil”?

Following the discussions here on SO I already read several times the remark that mutable structs are “evil” (like in the answer to this [question](https://stackoverflow.com/questions/292676/is-there-...

23 May at 12:26

Interactive shell using Docker Compose

Is there any way to start an interactive shell in a container using Docker Compose only? I've tried something like this, in my docker-compose.yml: ``` myapp: image: alpine:latest entrypoint: /bin/...

Why Choose Struct Over Class?

Playing around with Swift, coming from a Java background, why would you want to choose a Struct instead of a Class? Seems like they are the same thing, with a Struct offering less functionality. Why...

31 Oct at 16:33

How to check what version of jQuery is loaded?

How do I check which version of jQuery is loaded on the client machine? The client may have jQuery loaded but I don't know how to check it. If they have it loaded how do I check the version and the pr...

11 Jan at 16:2

What is the purpose of the HTML "no-js" class?

I notice that in a lot of template engines, in the [HTML5 Boilerplate](http://html5boilerplate.com/), in various frameworks and in plain php sites there is the `no-js` class added onto the `<HTML>` ta...

Multiple lines of input in <input type="text" />

I have this text input in a form: ``` <input type="text" cols="40" rows="5" style="width:200px; height:50px;" name="Text1" id="Text1" value="" /> ``` ...

1 May at 13:15

How do I pass multiple parameters into a function in PowerShell?

If I have a function which accepts more than one string parameter, the first parameter seems to get all the data assigned to it, and remaining parameters are passed in as empty. A quick test script: ...

How do I read CSV data into a record array in NumPy?

Is there a direct way to import the contents of a CSV file into a record array, just like how R's `read.table()`, `read.delim()`, and `read.csv()` import data into R dataframes? Or should I use [csv.r...

13 Jun at 07:55

How to add manifest permission to an application?

I am trying to access HTTP link using `HttpURLConnection` in Android to download a file, but I am getting this warning in `LogCat`: > WARN/System.err(223): java.net.SocketException: Permission denied...

17 Jul at 14:54

What are the advantages of NumPy over regular Python lists?

What are the advantages of [NumPy](http://en.wikipedia.org/wiki/NumPy) over regular Python lists? I have approximately 100 financial markets series, and I am going to create a cube array of 100x100x1...

27 Feb at 00:29