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Twitter Bootstrap alert message close and open again

I have a problem with alert messages. It is displayed normally, and I can close it when the user presses x (close), but when the user tries to display it again (for example, click on the button event) then it is not shown. (Moreover, if I print this alert message to console, it is equal to [] .) ...
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How to identify unused css definitions

...l and it shows me the unused css, but how to use it then? Do I have to manually search each item and remove it? – Timothée HENRY Feb 27 '13 at 14:35 19 ...
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Garbage collector in Android

I have seen many Android answers that suggest calling the garbage collector in some situations. 11 Answers ...
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mailto link with HTML body

... As you can see in RFC 6068, this is not possible at all: The special <hfname> "body" indicates that the associated <hfvalue> is the body of the message. The "body" field value is intended to contain the content for the first text/plain body part of the m...
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What is the difference between require() and library()?

...uld add this: It is probably best to avoid using require() unless you actually will be using the value it returns e.g in some error checking loop such as given by thierry. In most other cases it is better to use library(), because this will give an error message at package loading time if the pack...
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List or IList [closed]

...u are exposing your class through a library that others will use, you generally want to expose it via interfaces rather than concrete implementations. This will help if you decide to change the implementation of your class later to use a different concrete class. In that case the users of your lib...
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JSON.NET Error Self referencing loop detected for type

I tried to serialize POCO class that was automatically generated from Entity Data Model .edmx and when I used 25 Answers ...
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Android: Difference between Parcelable and Serializable?

...ing data , parcelable objects on the other hand should not be persisted at all . It's a really bad practice – TheAnimatrix Mar 25 '17 at 11:16 2 ...
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How to get object size in memory? [duplicate]

... Lists in C# are preallocated to whatever sizes the framework designers decided to go with, and then increased when needed. By default it's probably something like 10 elements. So you won't notice any size difference until you add enough element...
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Android ListView with different layouts for each row

...at you've described in comment I would suggest: Storing views in object called ViewHolder. It would increase speed because you won't have to call findViewById() every time in getView method. See List14 in API demos. Create one generic layout that will conform all combinations of properties and hid...