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What does the JSLint error 'body of a for in should be wrapped in an if statement' mean?

...type. Suppose you want all arrays to have a cool new function called filter_0 that will filter zeroes out. Array.prototype.filter_0 = function() { var res = []; for (var i = 0; i < this.length; i++) { if (this[i] != 0) { res.push(this[i]); } } return r...
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.NET Process.Start default directory?

...\system32. You can determine the value of %SYSTEMROOT% by using: string _systemRoot = Environment.GetEnvironmentVariable("SYSTEMROOT"); Here is some sample code that opens Notepad.exe with a working directory of %ProgramFiles%: ... using System.Diagnostics; ... ProcessStartInfo _processStar...
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Difference between dispatch_async and dispatch_sync on serial queue?

... ensure the serial execution of tasks. The only difference is that dispatch_sync only return after the block is finished whereas dispatch_async return after it is added to the queue and may not finished. for this code dispatch_async(_serialQueue, ^{ printf("1"); }); printf("2"); dispatch_async(_se...
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Super-simple example of C# observer/observable with delegates

...Here's a simple example: public class ObservableClass { private Int32 _Value; public Int32 Value { get { return _Value; } set { if (_Value != value) { _Value = value; OnValueChanged(); } ...
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Fitting empirical distribution to theoretical ones with Scipy (Python)?

...0, 12.0) matplotlib.style.use('ggplot') # Create models from data def best_fit_distribution(data, bins=200, ax=None): """Model data by finding best fit distribution to data""" # Get histogram of original data y, x = np.histogram(data, bins=bins, density=True) x = (x + np.roll(x, -1)...
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CORS Access-Control-Allow-Headers wildcard being ignored?

...d-By, X-Requested-With .htaccess Example (CORS Included): <IfModule mod_headers.c> Header unset Connection Header unset Time-Zone Header unset Keep-Alive Header unset Access-Control-Allow-Origin Header unset Access-Control-Allow-Headers Header unset Access-Control-Expose-Headers ...
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Binding an enum to a WinForms combo box, and then setting it

... in mind the tryparse is a .net 4.0 statement. – real_yggdrasil Jun 22 '12 at 7:53 For me SelectedValue is always null...
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What does FETCH_HEAD in Git mean?

... FETCH_HEAD is a short-lived ref, to keep track of what has just been fetched from the remote repository. git pull first invokes git fetch, in normal cases fetching a branch from the remote; FETCH_HEAD points to the tip of this bra...
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How can I use Timer (formerly NSTimer) in Swift?

...syntax (iOS 10+) let timer = Timer(timeInterval: 0.4, repeats: true) { _ in print("Done!") } // Swift >=3 selector syntax let timer = Timer.scheduledTimer(timeInterval: 0.4, target: self, selector: #selector(self.update), userInfo: nil, repeats: true) // Swift 2.2 selector syntax ...
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NUnit Test Run Order

... You mean you called your tests, for example, 001_first_test 002_second_test and so on? – ashes999 Feb 15 '12 at 20:48 ...