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How do I get the last four characters from a string in C#?

... 423 mystring.Substring(Math.Max(0, mystring.Length - 4)); //how many lines is this? If you're posi...
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Canvas width and height in HTML5

... 390 The canvas DOM element has .height and .width properties that correspond to the height="…" a...
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What is the best way to use a HashMap in C++?

...argc, char **argv) { std::map<std::string, int> m; m["hello"] = 23; // check if key is present if (m.find("world") != m.end()) std::cout << "map contains key world!\n"; // retrieve std::cout << m["hello"] << '\n'; std::map<std::string, int>::iterator i...
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How do I verify/check/test/validate my SSH passphrase?

... 123 You can verify your SSH key passphrase by attempting to load it into your SSH agent. With OpenSS...
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Why does ContentResolver.requestSync not trigger a sync?

... for Android to query your class as to what your SyncAdapter itself is. 3. Provide a class SyncAdapter to actually perform the sync. mySyncAdapter is where the real sync logic itself is stored. Its onPerformSync() method gets called when it's time to sync. I figure you already have this in pla...
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OpenCV C++/Obj-C: Detecting a sheet of paper / Square Detection

... 163 This is a recurring subject in Stackoverflow and since I was unable to find a relevant implement...
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Can I run javascript before the whole page is loaded?

... T.J. CrowderT.J. Crowder 825k153153 gold badges15121512 silver badges15541554 bronze badges ...
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What is Ember RunLoop and how does it work?

... Update 10/9/2013: Check out this interactive visualization of the run loop: https://machty.s3.amazonaws.com/ember-run-loop-visual/index.html Update 5/9/2013: all the basic concepts below are still up to date, but as of this commit, the Emb...
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Does Parallel.ForEach limit the number of active threads?

... answered Jul 11 '09 at 18:53 Jon SkeetJon Skeet 1211k772772 gold badges85588558 silver badges88218821 bronze badges ...
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In practice, what are the main uses for the new “yield from” syntax in Python 3.3?

I'm having a hard time wrapping my brain around PEP 380 . 8 Answers 8 ...