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What is the difference between is_a and instanceof?

...recated at the exact same time as the operator was introduced it became impossible to write code for both PHP 4 and 5 without throwing an E_STRICT around. You can't even do if (version_compare(PHP_VERSION, 5) >= 0) { /* use instanceof */ } else { /* use is_a */ } because it would still cause a sy...
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Can I see changes before I save my file in Vim?

...ew | r # | normal! 1Gdd diffthis exe "setlocal bt=nofile bh=wipe nobl noswf ro ft=" . filetype endfunction com! DiffSaved call s:DiffWithSaved() To get out of diff view you can use the :diffoff command. Below is a similar function, adapted to mimic the 'cvs diff' command... ...
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apache to tomcat: mod_jk vs mod_proxy

... A pros/cons comparison for those modules exists on http://blog.jboss.org/ mod_proxy * Pros: o No need for a separate module compilation and maintenance. mod_proxy, mod_proxy_http, mod_proxy_ajp and mod_proxy_balan...
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How to change Vagrant 'default' machine name?

...url = "http://files.vagrantup.com/precise64.box" config.vm.define "foohost" end VirtualBox GUI Name: "nametest_foohost_1386347922" Comments: If you explicitly define a VM, the name used replaces the token 'default'. This is the name vagrant outputs on the console. Simplifying based on zook'...
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XDocument or XmlDocument

...tent. For example, you can stream a large document but use LINQ to XML by positioning an XmlReader at the start of an element, reading an XElement from it and processing it, then moving on to the next element etc. There are various blog posts about this technique, here's one I found with a quick sea...
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static function in C

... entirely, or perform any number of other optimizations that might not be possible for a function with external linkage. share | improve this answer | follow |...
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Git: Create a branch from unstaged/uncommitted changes on master

...your changes? Since the changes are only local, git does not want you to lose them too easily. Upon changing branch, git does not overwrite your local changes. The result of your checkout master is: M testing , which means that your working files are not clean. git did change the HEAD, but did...
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Check number of arguments passed to a Bash script

... expressions, using (( )) to some may still be better, but they are still possible in [[ ]] with its arithmetic operators like -eq, -ne, -lt, -le, -gt, or -ge by placing the expression as a single string argument: A=1 [[ 'A + 1' -eq 2 ]] && echo true ## Prints true. That should be helpful ...
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How can I create a link to a local file on a locally-run web page?

...ile:///C:\Programs\sort.mw">Link 1</a> <a href="file:///C:\Videos\lecture.mp4">Link 2</a> These will never open the file in your local applications automatically. That's for security reasons which I'll cover in the last section. If it opens, it will only ever open in the brows...
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How to make git ignore changes in case?

...t too sure what is going on here, but sometimes a particular file in my repository will change the case of it's name. e.g.,: ...