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How to automatically install Emacs packages by specifying a list of package names?

... Previously I used this code and sometimes it did not work for some unknown reason saying "Package blah-blah is not available for installation" (here blah-blah is always the first element of the list). If I install the first package manually, everything works fine, but it is not a solution. Anyw...
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How can I generate a unique ID in Python? [duplicate]

...uction code (and about to roll out to more uses of it in a newer release). Now I'm scared! – Matthew Schinckel Nov 6 '10 at 7:38 2 ...
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Use tab to indent in textarea

I have a simple html textarea on my side. Right now if you click tab in it, it goes to the next field. I would like to make the tab button indent a few spaces instead. How can I do this? Thanks. ...
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How do I wrap a selection with an HTML tag in Visual Studio?

... I know this is old and you have probably found the answer by now but I would just like to add for the sake of those who might not know it that this is possible in VS 2010: Select the code you would like to surround. Do ctrl-k ...
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Site does not exist error for a2ensite

... pretty much everything... I will remember to add the .conf extension from now on... – wtf8_decode Mar 2 '15 at 17:53  |  show 3 more comments...
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Why use prefixes on member variables in C++ classes

... to nul-terminated char arrays, and it's not really all that difficult to know that "customerName" is a string! However, I do use prefixes to specify the usage of a variable (essentially "Apps Hungarian", although I prefer to avoid the term Hungarian due to it having a bad and unfair association wi...
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List of installed gems?

... The Gem command is included with Ruby 1.9+ now, and is a standard addition to Ruby pre-1.9. require 'rubygems' name = /^/i dep = Gem::Dependency.new(name, Gem::Requirement.default) specs = Gem.source_index.search(dep) puts specs[0..5].map{ |s| "#{s.name} #{s.version...
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Why should I prefer to use member initialization lists?

...estructor of “Type” is called for “a” since it goes out of scope. Now consider the same code with MyClass() constructor with Initializer List // With Initializer List class MyClass { Type variable; public: MyClass(Type a):variable(a) { // Assume that Type is an already ...
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Uppercase Booleans vs. Lowercase in PHP

...indulge in hating PHP (e.g. just see what Johrn mentioned above, I didn't know that for one), but given that it's basically case-insensitive, there is nothing strange in mixed-case expressions being the same. What is nonsense, however, that it mixes case-sensitivity and case-insensitivity with gene...
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Resetting a multi-stage form with jQuery

... That :input is handy... now I know I'll use. Thanks Paolo :) +1 – alex Mar 25 '09 at 4:51 ...