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Check that Field Exists with MongoDB

...eUploader: { brandingHtml: "Powered by \u003ca href=\"https://imgur.com/\"\u003e\u003csvg class=\"svg-icon\" width=\"50\" height=\"18\" viewBox=\"0 0 50 18\" fill=\"none\" xmlns=\"http://www.w3.org/2000/svg\"\u003e\u003cpath d=\"M46.1709 9.17788C46.1709 8.26454 46.2665 7.94324 4...
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How to find and return a duplicate value in array

...ou're writing this code for some huge scaling data (and if so, you can actually just use C or Python), the provided answer is far more elegant/readable, and isnt' going to run that much slower compared to a linear time solution. furthermore, in theory, the linear time solution requires linear space,...
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MySql export schema without data

... You Can Use MYSQL Administrator Tool its free http://dev.mysql.com/downloads/gui-tools/5.0.html you'll find many options to export ur MYSQL DataBase share | improve th...
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how to listen to N channels? (dynamic select statement)

... value.String() You can experiment with a more fleshed out example here: http://play.golang.org/p/8zwvSk4kjx share | improve this answer | follow | ...
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Linear Regression and group by in R

... fits <- lmList(response ~ year | state, data=d) fits #------------ Call: lmList(formula = response ~ year | state, data = d) Coefficients: (Intercept) year CA -1.34420990 0.17139963 NY 0.00196176 -0.01852429 Degrees of freedom: 20 total; 16 residual Residual standard error: 0.820...
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Is it possible to change the textcolor on an Android SearchView?

...ans using reflection. Also works with appcompat. – dj_bushido Jan 3 '15 at 22:44 You can also set android:theme on the...
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How can I find a specific element in a List?

... setter methods (as you might be used to from Java), write private string _id; public string Id { get { return _id; } set { _id = value; } } value is a contextual keyword known only in the set accessor. It represents the value assigned to the property. Sin...
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How do I catch a PHP fatal (`E_ERROR`) error?

...o $e->getMessage(); // Call to a member function method() on string } https://3v4l.org/67vbk Or you can use Throwable interface to catch all exceptions. Example: <?php try { undefinedFunctionCall(); } catch (Throwable $e) { // Handle error echo $e->getMe...
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TortoiseSVN icons not showing up under Windows 7

I can't seem to get the icons to display under Windows 7 and I really miss this from Windows XP. 31 Answers ...
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UITextField text change event

...tter: This involves the Key-Value Observing (KVO) feature of Objective-C (http://developer.apple.com/library/ios/#documentation/cocoa/conceptual/KeyValueObserving/KeyValueObserving.html#//apple_ref/doc/uid/10000177-BCICJDHA). Basically, you register yourself as an observer of a property and if thi...