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What does the caret operator (^) in Python do?

... I wanted to add, you can do binary numbers by typing 0bX where X is your binary. 0b0001, 0b0010, etc. So, 0b1101 ^ 0b1110 would give you 0b0011 (or 3). – Jeff Jul 28 '15 at 23:58 ...
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How do I concatenate two arrays in C#?

... a List uses more memory than an array, unless TrimExcess is called (which doesnt happen in ToList) – CSharpie Nov 9 '16 at 11:54 ...
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How do I find the last occurrence of a substring in an NSString?

... want to find the index of the second "abc," not the first. I know I could do this with a bunch of rangeOfStrings, but is there already a function for that? ...
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How do I use HTML as the view engine in Express?

... There is no more view engine, so I don't think res.render() will work any more. Instead, put your raw HTML files in public and let the static middleware deal with serving the files directly. If you need fancier routes than this, you could probably set up your ...
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How do I copy a folder from remote to local using scp? [closed]

How do I copy a folder from remote to local host using scp ? 11 Answers 11 ...
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How do I merge a git tag onto a branch

... I had to do git remote add upstream git@github.com/org/repo followed by git fetch --tags upstream to make it work. – MarkHu Jan 18 '17 at 23:54 ...
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What is the difference between bottom-up and top-down?

...user Sammaron has noted that, perhaps, this answer previously confused top-down and bottom-up. While originally this answer (rev3) and other answers said that "bottom-up is memoization" ("assume the subproblems"), it may be the inverse (that is, "top-down" may be "assume the subproblems" and "bottom...
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C++ - passing references to std::shared_ptr or boost::shared_ptr

...ptr<foo> &sp) //Again, no copy here { ... sp->do_something(); ... } How do you know that sp->do_something() will not blow up due to a null pointer? It all depends what is in those '...' sections of the code. What if you call something during the first '...'...
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How to make a Java thread wait for another thread's output?

...ode that must wait for the dbThread, you must have something like this: //do some work synchronized(objectYouNeedToLockOn){ while (!dbThread.isReady()){ objectYouNeedToLockOn.wait(); } } //continue with work after dbThread is ready In your dbThread's method, you would need to do s...
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How to create a simple proxy in C#?

I have downloaded Privoxy few weeks ago and for the fun I was curious to know how a simple version of it can be done. 10 An...