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Force Screen On

How do I force the screen to stay active and not shut off while my app is running? 3 Answers ...
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How to deal with floating point number precision in JavaScript?

...at depends on what kind of calculations you’re doing. If you really need your results to add up exactly, especially when you work with money: use a special decimal datatype. If you just don’t want to see all those extra decimal places: simply format your result rounded to a fix...
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How can I link to a specific glibc version?

... of Sun's symbol versioning scheme described here. One option is to statically link your binary. This is probably the easiest option. You could also build your binary in a chroot build environment, or using a glibc-new => glibc-old cross-compiler. According to the http://www.trevorpounds.com...
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Can I query MongoDB ObjectId by date?

...Seconds + "0000000000000000"); return constructedObjectId } /* Find all documents created after midnight on May 25th, 1980 */ db.mycollection.find({ _id: { $gt: objectIdWithTimestamp('1980/05/25') } }); share ...
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AngularJS validation with no enclosing

... <!DOCTYPE html> <html ng-app="plunker"> <head> <meta charset="utf-8" /> <title>AngularJS Plunker</title> <script>document.write('<base href="' + document.location + '" />');</script> <li...
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How to avoid annoying error “declared and not used”

...s it easier to read code written by other people (you are always sure that all declared variables will be used), and avoid some possible dead code. But, if you really want to skip this error, you can use the blank identifier (_) : package main import ( "fmt" // imported and not used: "fmt" ) ...
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Convert SVG image to PNG with PHP

I'm working on a web project that involves a dynamically generated map of the US coloring different states based on a set of data. ...
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How to configure MongoDB Java driver MongoOptions for production use?

... Updated to 2.9 : autoConnectRetry simply means the driver will automatically attempt to reconnect to the server(s) after unexpected disconnects. In production environments you usually want this set to true. connectionsPerHost are the amount of physical connections a single Mongo instance (it's si...
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The relationship could not be changed because one or more of the foreign-key properties is non-nulla

... You should delete old child items thisParent.ChildItems one by one manually. Entity Framework doesn't do that for you. It finally cannot decide what you want to do with the old child items - if you want to throw them away or if you want to keep and assign them to other parent entities. You must ...
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Create subdomains on the fly with .htaccess (PHP)

...ches[1])) { $subdomain = $matches[1]; } I have used regex here to to allow for people hitting your site via www.subdomain.example.org or subdomain.example.org. If you never anticipate having to deal with www. (or other subdomains) then you could simply use a substring like so: $subdomain = s...