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Is it valid to have a html form inside another html form?

Is it valid html to have the following: 14 Answers 14 ...
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Shortcuts in Objective-C to concatenate NSStrings

Are there any shortcuts to ( stringByAppendingString: ) string concatenation in Objective-C, or shortcuts for working with NSString in general? ...
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UIButton Long Press Event

I want to emulate a long a press button, how can I do this? I think a timer is needed. I see UILongPressGestureRecognizer but how can I utilize this type? ...
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How to get jQuery dropdown value onchange event

...nt get both value onchange of second dropdown and want to store separately in variable. How it is possible? 4 Answers ...
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Convert string to title case with JavaScript

Is there a simple way to convert a string to title case? E.g. john smith becomes John Smith . I'm not looking for something complicated like John Resig's solution , just (hopefully) some kind of one- or two-liner. ...
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Flask SQLAlchemy query, specify column names

How do I specify the column that I want in my query using a model (it selects all columns by default)? I know how to do this with the sqlalchmey session: session.query(self.col1) , but how do I do it with with models? I can't do SomeModel.query() . Is there a way? ...
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What does the `forall` keyword in Haskell/GHC do?

I'm beginning to understand how the forall keyword is used in so-called "existential types" like this: 8 Answers ...
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How do I implement an Objective-C singleton that is compatible with ARC?

How do I convert (or create) a singleton class that compiles and behaves correctly when using automatic reference counting (ARC) in Xcode 4.2? ...
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Is is possible to check if an object is already attached to a data context in Entity Framework?

I am getting the following error when trying to attach an object that is already attached to a given context via context.AttachTo(...) : ...
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Bring element to front using CSS

I can't figure out how to bring images to front using CSS . I've already tried setting z-index to 1000 and position to relative, but it still fails. ...