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When should you use a class vs a struct in C++?

... A struct with no modifiers or methods is called a POD struct, which exists as a backwards compatible interface with C libraries as it is (supposedly) guaranteed to be laid out as though it were a C struct. Apart from this one exception though, the only difference is ...
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Can you resolve an angularjs promise before you return it?

...Nizet's Plunkr but refactored to work within the context of what was originally asked (i.e. a function call to service) and actually on site. Inside the service... function getSomething(id) { // There will always be a promise so always declare it. var deferred = $q.defer(); if (Cache[i...
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Auto-loading lib files in Rails 4

.../foo.rb: class Foo end in lib/foo/bar.rb: class Foo::Bar end if you really wanna do some monkey patches in file like lib/extensions.rb, you may manually require it: in config/initializers/require.rb: require "#{Rails.root}/lib/extensions" P.S. Rails 3 Autoload Modules/Classes by Bill H...
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jQuery to serialize only elements within a div

...If you switch the order of the statements you'll notice that there isn't really any difference: jsfiddle.net/QAKjN/10. There's more in play than the selectors – Rondel Jul 31 '13 at 19:10 ...
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What code analysis tools do you use for your Java projects? [closed]

...n rewrite them. Some of these tools come with applications or "hooks" that allow them to be extended. For example, PMD comes with the "designer" tool that allows you to create new rules. Also, Checkstyle has the DescendantToken check that has properties that allow for substantial customization. I i...
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Bootstrap Dropdown with Hover

... Way better then the accepted answer imho. This keeps all the bootstrap logic and styling intact. Though I'd advice using the second call back and explicitly use removeClass and addClass to prevent some wierd behavior when you have clicked the button (where it would open when yo...
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Can anyone explain what JSONP is, in layman terms? [duplicate]

...nly used to bypass the cross-domain policies in web browsers. (You are not allowed to make AJAX requests to a web page perceived to be on a different server by the browser.) JSON and JSONP behave differently on the client and the server. JSONP requests are not dispatched using the XMLHTTPRequest an...
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Difference between Array and List in scala

...at you should (probably) be using it much more than an Array (which is actually mutable - the immutable analog of Array is IndexedSeq). If you are coming from a Java background, then the obvious parallel is when to use LinkedList over ArrayList. The former is generally used for lists which are only...
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Creating stored procedure and SQLite?

...than in a separate SQL engine process. So it makes more sense to implement all your business logic including what would have been SP code in the host language. You can however extend SQLite with your own user defined functions in the host language (PHP, Python, Perl, C#, Javascript, Ruby etc). You ...
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Literal notation for Dictionary in C#?

...gt; object first as the shortcut syntax is translated to a bunch of Add() calls (like your code): var data = new Dictionary<string, string> { { "test", "val" }, { "test2", "val2" } }; In C# 6, you now have the option of using a more intuitive syntax with Dictionary as well as any o...