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Are delphi variables initialized with a value by default?

... As Giacomo pointed out in the comments below, this is all explained in the Delphi help files at ms-help://borland.bds4/bds4ref/html/Variables.htm. In Delphi 2009 I found the same info by searching the help for "variables" (funnily enough I tried lots of searches but I didn't th...
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jQuery event handlers always execute in order they were bound - any way around this? [duplicate]

...dler function $.fn.bindFirst = function(name, fn) { // bind as you normally would // don't want to miss out on any jQuery magic this.on(name, fn); // Thanks to a comment by @Martin, adding support for // namespaced events too. this.each(function() { var handlers = $....
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How do negative margins in CSS work and why is (margin-top:-5 != margin-bottom:5)?

...way to go (as opposed to articles like this)? I see you're trying to vertically center the element, so why do you have to set margin-top:-8px; and not margin-top:-50%;? Well, vertical centering in CSS is harder than it should be. When setting even top or bottom margins in %, the value is calculated...
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How to fix homebrew permissions?

I have uninstalled and installed Homebrew 3 times now because it seems to never allow me to install anything as it denies me permissions at the end of most installations. ...
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c++11 Return value optimization or move? [duplicate]

...) { Foo result; mangle(result); return result; } This will already allow the use of the move constructor, if one is available. In fact, a local variable can bind to an rvalue reference in a return statement precisely when copy elision is allowed. Your second version actively prohibits copy ...
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How to display gpg key details without importing it?

...from the warning. Technical Details: Listing OpenPGP Packets Without installing any further packages, you can use gpg --list-packets [file] to view information on the OpenPGP packets contained in the file. $ gpg --list-packets a4ff2279.asc :public key packet: version 4, algo 1, created 135647...
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Format a date using the new date time API

...in JavaScript or DateTime in Perl) are based on the concept of a universal all-purpose unique temporal type (in German there is the poetic expression "eierlegende Wollmilchsau"). In this design there cannot be an unsupported field. But the price is high: Many time problems cannot be adequately handl...
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File system that uses tags rather than folders?

...Database File System. I know of one experimental implementation for Linux called DBFS. Microsoft started developing Windows Future Storage (WinFS) - it was planned to ship with Vista but due to technical problems the project was delayed and as far as I know finally canceled. NTFS is also capable of ...
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What issues should be considered when overriding equals and hashCode in Java?

What issues / pitfalls must be considered when overriding equals and hashCode ? 11 Answers ...
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Task not serializable: java.io.NotSerializableException when calling function outside closure only o

Getting strange behavior when calling function outside of a closure: 9 Answers 9 ...