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Randomize a List
What is the best way to randomize the order of a generic list in C#? I've got a finite set of 75 numbers in a list I would like to assign a random order to, in order to draw them for a lottery type application.
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Rails filtering array of objects by attribute value
...tachment| attachment.file_type == 'image' }
but for performance wise you don't need to iterate @attachments twice :
@logos , @images = [], []
@attachments.each do |attachment|
@logos << attachment if attachment.file_type == 'logo'
@images << attachment if attachment.file_type == '...
SSL handshake alert: unrecognized_name error since upgrade to Java 1.7.0
... sslsock.
Try to run sslsock.startHandshake(). This will block until it is done or throw an exception on error. Whenever an error occurred in startHandshake(), get the exception message. If it equals to handshake alert: unrecognized_name, then you have found a misconfigured server.
When you have re...
How to perform better document version control on Excel files and SQL schema files
...e of several Excel files and SQL schema files. How should I perform better document version control on these files?
9 Answe...
How to change height of grouped UITableView header?
...ht.
Returning 0 causes UITableView to use a default value. This is
undocumented behavior. If you return a very small number, you
effectively get a zero-height header.
Swift 3:
func tableView(_ tableView: UITableView, heightForHeaderInSection section: Int) -> CGFloat {
if secti...
Using Emacs as an IDE
...ntly my workflow with Emacs when I am coding in C or C++ involves three windows. The largest on the right contains the file I am working with. The left is split into two, the bottom being a shell which I use to type in compile or make commands, and the top is often some sort of documentation or RE...
How does one make random number between range for arc4random_uniform()?
so my goal in this codebit is to randomly roll two dice and as we all know your regular die only has 6 sides so I imported Foundation for access to arc4random_uniform(UInt32). I attempted using the range of (1..7) to avoid randomly getting 0 however that returned an error which I didn't enjoy too mu...
Accessing console and devtools of extension's background.js
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You're looking at the wrong place. Logged console messages do not appear in the web page, but in the (invisible) background page. To see these messages in the console, follow these steps:
Visit chrome://extensions/.
You can also right-click the extension icon, then click "Manage ext...
How can I make pandas dataframe column headers all lowercase?
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You can do it like this:
data.columns = map(str.lower, data.columns)
or
data.columns = [x.lower() for x in data.columns]
example:
>>> data = pd.DataFrame({'A':range(3), 'B':range(3,0,-1), 'C':list('abc')})
>>>...
C++, What does the colon after a constructor mean? [duplicate]
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can we do something like this Demo():m_val(NULL) I am doing this but its giving me errors, any idea what i am doing wrong?
– 2am
Oct 14 '13 at 11:33
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