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Revert to a commit by a SHA hash in Git? [duplicate]
...ample, I want to revert to a commit six commits behind the head, reverting all the changes in the intermediary commits in between.
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Django development IDE [closed]
I have done a little Django development, but it has all been in a text editor. I was curious what more advanced development tools others are using in their Django development.
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https URL with token parameter : how secure is it?
...ased on their private information (given through a form). We would like to allow them to get back on their simulation results later, but without forcing them to create a login/password account.
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How to update attributes without validation
...a.attributes({ ... }).save(false) instead. Or if you don't care (or want) callbacks to be run, checkout update_column.
– Joshua Pinter
Dec 10 '12 at 2:45
27
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How can I eliminate slow resolving/loading of localhost/virtualhost (a 2-3 second lag) on Mac OS X L
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I had the exact same problem and it was driving me crazy!
Put all your hosts file entries for localhost into one line like so:
127.0.0.1 localhost myproject.dev myotherproject.dev
::1 localhost
fe80::1%lo0 localhost
Worked like a charm for me. Seems like a bug in Lion.
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How to run JUnit test cases from the command line
...s/current/user-guide/#running-tests-console-launcher
For JUnit 4.X it's really:
java -cp .:/usr/share/java/junit.jar org.junit.runner.JUnitCore [test class name]
But if you are using JUnit 3.X note the class name is different:
java -cp .:/usr/share/java/junit.jar junit.textui.TestRunner [test c...
Cross cutting concern example
...ently used in distributed applications to aid debugging by tracing method calls. Suppose we do logging at both the beginning and the end of each function body. This will result in crosscutting all classes that have at least one function.
(Courtesy)
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Regex for numbers only
I haven't used regular expressions at all, so I'm having difficulty troubleshooting. I want the regex to match only when the contained string is all numbers; but with the two examples below it is matching a string that contains all numbers plus an equals sign like "1234=4321". I'm sure there's a way...
Do HTML5 custom data attributes “work” in IE 6?
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Totally, this isn’t actual support of HTML5 data attributes. Does sound like a way to utilise them though.
– Paul D. Waite
Mar 9 '10 at 23:05
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map vs. hash_map in C++
...tied to that key.
map is implemented as a balanced binary search tree (usually a red/black tree).
An unordered_map should give slightly better performance for accessing known elements of the collection, but a map will have additional useful characteristics (e.g. it is stored in sorted order, which...