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How to use index in select statement?

...question you have to specify the DB you are using. For MySQL, you want to read the Index Hint Syntax documentation on how to do this share | improve this answer | follow ...
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How do I check if a given string is a legal/valid file name under Windows?

... I read the same article mentioned in this answer and found through experimentation that COM0 and LPT0 are also not allowed. @dlf this one works with filenames that begin with '.': ^(?!^(?:PRN|AUX|CLOCK\$|NUL|CON|COM\d|LPT\d)(?...
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Hashset vs Treeset

...sal. None of these implementations are synchronized. That is if multiple threads access a set concurrently, and at least one of the threads modifies the set, it must be synchronized externally. LinkedHashSet is in some sense intermediate between HashSet and TreeSet. Implemented as a hash table with ...
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How to get Url Hash (#) from server side

...ther things you don't want to handle. Also, make sure you use $(document).ready() appropriately, of course. share | improve this answer | follow | ...
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How to search for occurrences of more than one space between words in a line

...refer not to rely on character case for such functionality, it's easier to read. – AlexanderMP Sep 21 '10 at 9:22 1 ...
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Asynchronous shell commands

... & puts the job in the background. Makes it block on attempting to read input, and Makes the shell not wait for its completion. disown removes the process from the shell's job control, but it still leaves it connected to the terminal. One of the results is that the shell won't send it a S...
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this.setState isn't merging states as I would expect

... @Madbreaks Ok, yes, upon re-reading the official docs I see that it is specified that you must use the function form of setState to reliably update state based on previous state. That said, I've never come across a problem to date if not trying to call...
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How do I protect Python code? [closed]

...a criminal offense. Since no technical method can stop your customers from reading your code, you have to apply ordinary commercial methods. Licenses. Contracts. Terms and Conditions. This still works even when people can read the code. Note that some of your Python-based components may require...
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What is the difference between concurrent programming and parallel programming?

... If you program is using threads (concurrent programming), it's not necessarily going to be executed as such (parallel execution), since it depends on whether the machine can handle several threads. Here's a visual example. Threads on a non-threaded m...
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What is the difference between print and puts?

... puts adds a new line to the end of each argument if there is not one already. print does not add a new line. For example: puts [[1,2,3], [4,5,nil]] Would return: 1 2 3 4 5 Whereas print [[1,2,3], [4,5,nil]] would return: [[1,2,3], [4,5,nil]] Notice how puts does not output the nil va...