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How do I pick randomly from an array?

I want to know if there is a much cleaner way of doing this. Basically, I want to pick a random element from an array of variable length. Normally, I would do it like this: ...
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How to make an element in XML schema optional?

...nt name="description" type="xs:string" minOccurs="0" maxOccurs="1" /> if you want 0 or 1 "description" elements, Or <xs:element name="description" type="xs:string" minOccurs="0" maxOccurs="unbounded" /> if you want 0 to infinity number of "description" elements. ...
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Separating class code into a header and cpp file

...s declaration goes into the header file. It is important that you add the #ifndef include guards, or if you are on a MS platform you also can use #pragma once. Also I have omitted the private, by default C++ class members are private. // A2DD.h #ifndef A2DD_H #define A2DD_H class A2DD { int gx; ...
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CSS Properties: Display vs. Visibility

What is difference between Display vs. Visibility properties? 4 Answers 4 ...
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How to Publish Web with msbuild?

... script. Here are the relevant TeamCity build configuration settings: Artifact paths: %system.teamcity.build.workingDir%\MyProject\obj\Debug\Package\PackageTmp Type of runner: MSBuild (Runner for MSBuild files) Build file path: MyProject\MyProject.csproj Working directory: same as checkout dire...
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What is the meaning of “this” in Java?

...rrent object. Each non-static method runs in the context of an object. So if you have a class like this: public class MyThisTest { private int a; public MyThisTest() { this(42); // calls the other constructor } public MyThisTest(int a) { this.a = a; // assigns the value of the pa...
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What's the -practical- difference between a Bare and non-Bare repository?

...t. I haven't been able to understand quite well (theoretically) about the differences between them, and why I should "push" to a bare repository. Here's the deal: ...
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Bring element to front using CSS

...nt answer from Soon Khai is the correct explanation: z-index has no effect if element isn't positioned – FelipeAls Jul 9 '15 at 7:58 2 ...
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How to add an integer to each element in a list?

If I have list=[1,2,3] and I want to add 1 to each element to get the output [2,3,4] , how would I do that? 11 Answers...
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Using jQuery how to get click coordinates on the target element

... +1 for the examples...one note though I'd also add the code here, if your link dies this question becomes useless in the future, I'd put the code for each and a brief description here :) – Nick Craver♦ Jul 13 '10 at 11:25 ...