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Why are joins bad when considering scalability?
...Scalability is all about pre-computing (caching), spreading out, or paring down the repeated work to the bare essentials, in order to minimize resource use per work unit. To scale well, you don't do anything you don't need to in volume, and the things you actually do you make sure are done as effici...
Hidden features of Eclipse [closed]
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Ctrl-J starts an incremental find.
Hit Ctrl-J, then start typing. Use up/down to find previous/next instances of what you typed.
Ctrl-Shift-J searches backwards.
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How can you iterate over the elements of an std::tuple?
...e a version with the indexing flipped - start at I=sizeof...(Tp) and count down. Then supply a maximum number of args explicitly. You could also make a version that broke on a tag type, say break_t. Then you would put an object of that tag type in your tuple when you wanted to stop printing. Or ...
Start two instances of IntelliJ IDE
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It doesn't help when modal dialogs will lock down both windows effectively making dialogs single instance. So you can't for example compare config properties between the two different projects. Very annoying.
– Jeff Mercado
Aug 5 '...
iPhone 5 CSS media query
...han 30% of your website visitors come from mobile, turn this scheme upside-down, providing mobile-first approach. Use min-device-width in that case. This will speed up webpage rendering for mobile browsers.
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Show dialog from fragment?
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@RichardLeMesurier Indeed, fragments are ups and downs.
– Warpzit
Sep 15 '14 at 11:29
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What is the best Distributed Brute Force countermeasure?
...t of a way to let even CAPTCHA-challenged users pass through during a 'lockdown': instead of, or as a supplement to, the backup CAPTCHA login, provide the user with an option to have a single-use, user-specific lockdown code sent to his email, that he can then use to bypass the throttling. This defi...
How to create a temporary directory/folder in Java?
...e gist of the problem is:
deleteOnExit() only deletes for normal JVM shutdowns, not crashes or killing the JVM process.
deleteOnExit() only deletes on JVM shutdown - not good for long running server processes because:
The most evil of all - deleteOnExit() consumes memory for each temp file entry. ...
Are GUID collisions possible?
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Down vote because, in principle (in it's rawest form), you are wrong saying "no" to the question "Are GUID collisions possible?". It's very possible. The likelihood of which is tiny, but it's possible. I hate to sound pedanti...
JavaScript: Object Rename Key
...veat is that if the new key name already exists, its value is going to get down trodden: jsfiddle.net/ryurage/B7x8x
– Brandon Minton
Jul 22 '14 at 16:06
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