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What is Ruby equivalent of Python's `s= “hello, %s. Where is %s?” % (“John”,“Mary”)`
In Python, this idiom for string formatting is quite common
4 Answers
4
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Sort array of objects by object fields
... return $first->number > $second->number;
});
UPDATED
with the string don't forget to convert to the same register (upper or lower)
// Desc sort
usort($array,function($first,$second){
return strtolower($first->text) < strtolower($second->text);
});
// Asc sort
usort($array...
Determine if Android app is being used for the first time
...is over.
This is my code to catch the first time you open the app:
final String PREFS_NAME = "MyPrefsFile";
SharedPreferences settings = getSharedPreferences(PREFS_NAME, 0);
if (settings.getBoolean("my_first_time", true)) {
//the app is being launched for first time, do something
...
Why can't I use float value as a template parameter?
... current C++ standard does not allow float (i.e. real number) or character string literals to be used as template non-type parameters. You can of course use the float and char * types as normal arguments.
Perhaps the author is using a compiler that doesn't follow the current standard?
...
Regular expression search replace in Sublime Text 2
...
Important: Use the ( ) parentheses in your search string
While the previous answer is correct there is an important thing to emphasize! All the matched segments in your search string that you want to use in your replacement string must be enclosed by ( ) parentheses, other...
Why Doesn't C# Allow Static Methods to Implement an Interface?
...asing convention, like Java has, would help here.
*/
public const string AnimalScreenName = "Animal";
public string ScreenName(){ return AnimalScreenName; }
}
For a more complicated situation, you could always declare another static method and delegate to that. In trying come up with...
Getting an element from a Set
...you have no other option but to use the iterator:
public static void main(String[] args) {
Set<Foo> set = new HashSet<Foo>();
set.add(new Foo("Hello"));
for (Iterator<Foo> it = set.iterator(); it.hasNext(); ) {
Foo f = it.next();
if (f.equals(new Foo(...
How can I discover the “path” of an embedded resource?
...
This will get you a string array of all the resources:
System.Reflection.Assembly.GetExecutingAssembly().GetManifestResourceNames();
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How do sessions work in Express.js with Node.js?
...connect-redis).
Details
Express.js/Connect creates a 24-character Base64 string using utils.uid(24) and stores it in req.sessionID. This string is then used as the value in a cookie.
Client Side
Signed cookies are always used for sessions, so the cookie value will have the following format.
[si...
How can I download HTML source in C#
...file.html");
// Or you can get the file content without saving it
string htmlCode = client.DownloadString("http://yoursite.com/page.html");
}
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