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What are database normal forms and can you give examples? [closed]
...es |
IT103 | 2009-2 | 120 | 242 | Mrs Smith |
Now hopefully it should be obvious that TeacherName is dependent on TeacherID - so this is not in 3NF. To fix this, we do much the same as we did in 2NF - take the TeacherName field out of this table, and put it in its own, w...
How do you overcome the HTML form nesting limitation?
I know that XHTML doesn't support nested form tags and I have already read other answers here on Stack Overflow regarding this subject, but I still haven't figured out an elegant solution to the problem.
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Android custom dropdown/popup menu
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Now it can also be used in lower versions ie below 3.0(honeycomb) by using the v7 compat support library..
– AndroidMech
Jun 6 '14 at 13:27
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Are HLists nothing more than a convoluted way of writing tuples?
...tions for HLists is abstracting over arity. Arity is typically statically known at any given use site of an abstraction, but varies from site to site. Take this, from shapeless's examples,
def flatten[T <: Product, L <: HList](t : T)
(implicit hl : HListerAux[T, L], flatten : Flatten[L]) : ...
Watermark / hint text / placeholder TextBox
...(new Rect(finalSize));
return finalSize;
}
#endregion
}
Now you can put a watermark on any TextBox like this:
<AdornerDecorator>
<TextBox x:Name="SearchTextBox">
<controls:WatermarkService.Watermark>
<TextBlock>Type here to search text<...
SyntaxError: Use of const in strict mode
...onst declarations without the --harmony flag.
With the above said you can now run node app.js, with app.js:
'use strict';
const MB = 1024 * 1024;
...
getting both the syntax sugar and the benefits of strict mode.
share
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iOS 6 apps - how to deal with iPhone 5 screen size? [duplicate]
...s follows:
File UIDevice+Resolutions.h:
enum {
UIDeviceResolution_Unknown = 0,
UIDeviceResolution_iPhoneStandard = 1, // iPhone 1,3,3GS Standard Display (320x480px)
UIDeviceResolution_iPhoneRetina4 = 2, // iPhone 4,4S Retina Display 3.5" (640x960px)
UIDevice...
How to compare objects by multiple fields
...to the fields by using Strings instead (no typesafety, auto-refactorings). Now if a field is renamed, the compiler won’t even report a problem. Moreover, because this solution uses reflection, the sorting is much slower.
Getting there: Sorting with Google Guava’s ComparisonChain
Collections.so...
Sending command line arguments to npm script
...erver --port 5000"
},
We run this from the command line with npm start
Now if we want to pass in a port to the npm script:
"scripts": {
"start": "webpack-dev-server --port process.env.port || 8080"
},
running this and passing the port e.g. 5000 via command line would be as follows:
npm sta...
Way to get number of digits in an int?
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@CPerkins. Premature optimization. You know the spiel.
– Michael Borgwardt
Aug 20 '09 at 17:50
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