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Rails: How does the respond_to block work?
I'm going through the Getting Started with Rails guide and got confused with section 6.7. After generating a scaffold I find the following auto-generated block in my controller:
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How to show all parents and subclasses of a class in IntelliJ IDEA?
When I'm editing a Java class in Eclipse, when my cursor is over a class variable, I can do Ctrl + T to have a popup that shows all its parents and subclasses. What is the equivalent in IntelliJ?
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String length in bytes in JavaScript
In my JavaScript code I need to compose a message to server in this format:
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Android java.lang.VerifyError?
In my Android app, I always get VerifyErrors! And I cannot figure out why. Whenever I include a external JAR, I always get VerifyErrors when I try to launch my app (except for once, when I included Apache Log4j.)
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Is there a way to get the git root directory in one command?
Mercurial has a way of printing the root directory (that contains .hg) via
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Download the Android SDK components for offline install
Is it possible to download the Android SDK components for offline install without using the SDK Manager?
The problem is I am behind a firewall which I have no control over and both sites download URLs seem to be blocked (throws a connection refused exception)
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When should I use C++ private inheritance?
Unlike protected inheritance, C++ private inheritance found its way into mainstream C++ development. However, I still haven't found a good use for it.
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What is Java Servlet?
..., write to this HTTP response" level which servlets provide.
Servlets run in a servlet container which handles the networking side (e.g. parsing an HTTP request, connection handling etc). One of the best-known open source servlet containers is Tomcat.
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How to manage client-side JavaScript dependencies? [closed]
...re great solutions to manage dependencies on the server side, I could not find any that satisfies all my needs to have a coherent client side JavaScript dependency management workflow. I want to satisfy these 5 requirements:
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What are the lesser known but useful data structures?
...s but are still relatively unknown. A very cool use of tries is described in "TRASH - A dynamic LC-trie and hash data structure", which combines a trie with a hash function.
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