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Difference between freeze and seal
I just heard about the JavaScript methods freeze and seal , which can be used to make any Object immutable.
8 Answers
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ASP.NET MVC Custom Error Handling Application_Error Global.asax?
...ler called Error with action methods HTTPError404() , HTTPError500() , and General() . They all accept a string parameter error . Using or modifying the code below.
What is the best/proper way to pass the data to the Error controller for processing? I would like to have a solution as robust a...
How can i get the session object if i have the entity-manager
...yManagerImpl) em.getDelegate()).getSession();
I agree, that's horrible, and the spec is to blame here (not clear enough).
JPA 2.0
With JPA 2.0, there is a new (and much better) EntityManager#unwrap(Class<T>) method that is to be preferred over EntityManager#getDelegate() for new applicati...
How to index characters in a Golang string?
... Specification section on Conversions.
The Go Blog: Strings, bytes, runes and characters in Go
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Append text to input field
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Note, page refresh or form submit and back on the page will of course add the same appended text each time, so you end up with "more text" then "more textmore text" etc.
– James
Sep 8 at 15:59
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Why are arrays covariant but generics are invariant?
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Via wikipedia:
Early versions of Java and C# did not include generics (a.k.a. parametric polymorphism).
In such a setting, making arrays invariant rules out useful polymorphic programs.
For example, consider writing a function to shuffle an array, or a fun...
Bootstrap combining rows (rowspan)
I am testing Twitter Bootstrap and got stuck with
basic scaffolding with rows. I revisited their documentation number of times and I can see nesting columns where you can basically nest columns within a column but I cannot locate
the capability of combining rows into one and have it aligned with ...
Team Build Error: The Path … is already mapped to workspace
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Use the command line utility TF - Team Foundation Version Control Tool (tf).
You can get a list of all workspaces by bringing up a Visual Studio Command Prompt then changing to your workspace folder and issuing the following commands:
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Alternative to itoa() for converting integer to string C++? [duplicate]
...integer to a string because when I run it in visual Studio I get warnings, and when I try to build my program under Linux, I get a compilation error.
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How can I check the system version of Android?
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Check android.os.Build.VERSION.
CODENAME: The current development codename, or the string "REL" if this is a release build.
INCREMENTAL: The internal value used by the underlying source control to represent this build.
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