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iOS start Background Thread

... dispatch_async(dispatch_get_global_queue(DISPATCH_QUEUE_PRIORITY_DEFAULT, 0), ^{ [self getResultSetFromDB:docids]; }); GCD is a newer technology, and is more efficient in terms of memory overhead and lines of code. Updated with a hat tip to Chris Nolet, who suggested a change that makes th...
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Regex using javascript to return just numbers

If I have a string like "something12" or "something102", how would I use a regex in javascript to return just the number parts? ...
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Captured variable in a loop in C#

... 205 Yes - take a copy of the variable inside the loop: while (variable < 5) { int copy = va...
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How to change column datatype in SQL database without losing data

... You can easily do this using the following command. Any value of 0 will be turned into a 0 (BIT = false), anything else will be turned into 1 (BIT = true). ALTER TABLE dbo.YourTable ALTER COLUMN YourColumnName BIT The other option would be to create a new column of type BIT, fill it ...
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Sort a Map by values

... | edited Apr 3 '18 at 0:00 community wiki 1...
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Can we have functions inside functions in C++?

...std::cout << message << "\n"; }; // Prints "Hello!" 10 times for(int i = 0; i < 10; i++) { print_message("Hello!"); } } Lambdas can also modify local variables through **capture-by-reference*. With capture-by-reference, the lambda has access to all local v...
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Converting HTML files to PDF [closed]

... answered Mar 11 '09 at 9:22 MarkMark 26.7k55 gold badges5252 silver badges8686 bronze badges ...
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Offset a background image from the right using CSS

... I found this CSS3 feature helpful: /* to position the element 10px from the right */ background-position: right 10px top; As far as I know this is not supported in IE8. In latest Chrome/Firefox it works fine. See Can I use for details on the supported browsers. Used source: http://ta...
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How Do I Convert an Integer to a String in Excel VBA?

... 10 Answers 10 Active ...
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HTTP 1.0 vs 1.1

Could somebody give me a brief overview of the differences between HTTP 1.0 and HTTP 1.1? I've spent some time with both of the RFCs, but haven't been able to pull out a lot of difference between them. Wikipedia says this: ...