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How to get UTC timestamp in Ruby?

... e.g. seconds since the Unix epoch, 100-ns intervals since 1601 or maybe a string for display purposes or storing the timestamp in a database, you can readily get that from the object. But that depends very much on your intended use. Saying that »a true timestamp is the number of seconds since the...
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No internet on Android emulator - why and how to fix? [closed]

I am trying to use internet with the Android emulator, but with no success. Any ideas? 10 Answers ...
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Getting a list of files in a directory with a glob

...u can achieve this pretty easily with the help of NSPredicate, like so: NSString *bundleRoot = [[NSBundle mainBundle] bundlePath]; NSFileManager *fm = [NSFileManager defaultManager]; NSArray *dirContents = [fm contentsOfDirectoryAtPath:bundleRoot error:nil]; NSPredicate *fltr = [NSPredicate predica...
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Difference between onCreate() and onStart()? [duplicate]

...** Called when the activity is first created. */ private final static String TAG = "TestActivity"; @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.main); Log.i(TAG, "On Create ....."); }...
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Create SQLite Database and table [closed]

...ction("Data Source=MyDatabase.sqlite;Version=3;"); m_dbConnection.Open(); string sql = "create table highscores (name varchar(20), score int)"; SQLiteCommand command = new SQLiteCommand(sql, m_dbConnection); command.ExecuteNonQuery(); sql = "insert into highscores (name, score) values ('Me', 9001...
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URL encode sees “&” (ampersand) as “&” HTML entity

I am encoding a string that will be passed in a URL (via GET). But if I use escape , encodeURI or encodeURIComponent , & will be replaced with %26amp%3B , but I want it to be replaced with %26 . What am I doing wrong? ...
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Is there an opposite to display:none?

...told about "undoing" display:none in JavaScript only. Of course, the empty string won't work in CSS, since it's the invalid value. Hovewer, display: unset you suggest won't restore, e.g., the default display:block for a <div> or the default display:table-row for a <tr>, it effectively tu...
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What's the best way to set a single pixel in an HTML5 canvas?

... RGB values straight into an ImageData block on the other hand requires no string handling or parsing. share | improve this answer | follow | ...
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How to exit from PostgreSQL command line utility: psql

...ny reasonably sane program which reads from stdin and interprets the empty string as EOF will accept ^D. – Kevin Aug 20 '15 at 20:37 ...
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Inline list initialization in VB.NET [duplicate]

...this syntax for VB.NET 2005/2008 compatibility: Dim theVar As New List(Of String)(New String() {"one", "two", "three"}) Although the VB.NET 2010 syntax is prettier. share | improve this answer ...