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What are “decorators” and how are they used?
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Awesome example. I was actually wondering how to extend third party modules functionality without meddling with them
– Arthur Kovacs
Jan 29 '14 at 14:30
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Focus-follows-mouse (plus auto-raise) on Mac OS X
...defaults write org.x.X11 wm_ffm -bool true
Apparently there's a program called CodeTek Virtual Desktop that'll emulate it systemwide, but it costs $$ (and they never got a version out for OSX Leopard).
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Is there a timeout for idle PostgreSQL connections?
...th <idle> in transaction sessions, but with too many connections overall.
Killing connections is not the right answer for that, but it's an OK-ish temporary workaround.
Rather than re-starting PostgreSQL to boot all other connections off a PostgreSQL database, see: How do I detach all other ...
Can I set null as the default value for a @Value in Spring?
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This is really old, but you can use Spring EL now, e.g.
@Value("${stuff.value:#{null}}")
See this question.
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Create new tmux session from inside a tmux session
... Thanks for the very complete answer, this answered a few of my questions all at once!
– mdekkers
Jun 1 '18 at 4:33
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Record file copy operation with Git
...n (-C implies -M), and you can request more expensive copy detection among all files with --find-copies-harder or -C -C (which implies -C, which implies -M). See the git-diff manpage.
You can also configure git to always do rename detection by setting diff.renames to a boolean true value (e.g. true...
seek() function?
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Regarding seek() there's not too much to worry about.
First of all, it is useful when operating over an open file.
It's important to note that its syntax is as follows:
fp.seek(offset, from_what)
where fp is the file pointer you're working with; offset means how many positions you wi...
contenteditable, set caret at the end of the text (cross-browser)
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The following function will do it in all major browsers:
function placeCaretAtEnd(el) {
el.focus();
if (typeof window.getSelection != "undefined"
&& typeof document.createRange != "undefined") {
var range = document.c...
Using CSS how to change only the 2nd column of a table
...ountTable table table td + td{
background: red
}
Note: this works for all browsers (Modern and old ones) that's why I added my answer to an old question
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Generating a UUID in Postgres for Insert statement?
...4.
If you're using a packaged version of PostgreSQL you might need to install a separate package containing the contrib modules and extensions. Search your package manager database for 'postgres' and 'contrib'.
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