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Why must we define both == and != in C#?

...vent unexpected behavior Perhaps I want to do a value comparison on == to test equality. However, when it came to != I didn't care at all if the values were equal unless the reference was equal, because for my program to consider them equal, I only care if the references match. After all, this is...
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Using Node.js only vs. using Node.js with Apache/Nginx

... the idea of using what you know best or using what is perceived as better-tested / more stable. These are very valid reasons practically speaking, but have little purely technical relevance. Unless you find a feature that is possible with a classic web server that is not possible with Node (and I ...
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No Activity found to handle Intent : android.intent.action.VIEW

...t exceptions will arise, and why? This is a sign of code that has not been tested thoroughly. – jbass Feb 8 '17 at 22:58 add a comment  |  ...
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How to access a mobile's camera from a web app?

... (front) camera. To access video, substitute "video" for "image" in name. Tested on iPhone 5c, running iOS 10.3.3, firmware 760, works fine. https://www.w3.org/TR/html-media-capture/ share | impro...
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__lt__ instead of __cmp__

...ptions can let you optimize as needed, while still quickly prototyping and testing. Neither one tells me why it's removed. (Essentially it boils down to developer efficiency for me.) Is it possible the rich comparisons are less efficient with the cmp fallback in place? That wouldn't make sense to me...
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How to delete a whole folder and content?

... I've done no tests for efficiency, but I believe mine is more robust. chirag's will work for the specific case of the DCIM folder, where folders within DCIM should contain only files (i.e. folders within DCIM don't normally contain any su...
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How to use http.client in Node.js if there is basic authorization

...ername:password combination which gets encoded in Base64: var username = 'Test'; var password = '123'; var auth = 'Basic ' + Buffer.from(username + ':' + password).toString('base64'); // new Buffer() is deprecated from v6 // auth is: 'Basic VGVzdDoxMjM=' var header = {'Host': 'www.example.com', '...
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How to enable file sharing for my app?

...quired any more. One more hint: do not only modify the Info.plist of the 'tests' target. The main app and the 'tests' have different Info.plist. share | improve this answer | ...
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What's the difference between SoftReference and WeakReference in Java?

...ere Key is reference a object. import java.util.HashMap; public class Test { public static void main(String args[]) { HashMap<Employee, EmployeeVal> aMap = new HashMap<Employee, EmployeeVal>(); Employee emp = new Employee("Vinoth"); ...
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How to use HttpWebRequest (.NET) asynchronously?

...r, args) => { args.Result = new WebClient().DownloadString(settings.test_url); }; worker.RunWorkerCompleted += (sender, e) => { if (e.Error != null) { connectivityLabel.Text = "Error: " + e.Error.Message; } else { connectivityLabel.Text = "Connectivity OK"; ...