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What is Ruby's double-colon `::`?
...nd one it is used to locate the class method (static) of the Routes class, etc, etc.
It is not used to expose anything, its used to "locate" stuff around your scopes.
http://en.wikipedia.org/wiki/Scope_resolution_operator
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How do I move forward and backward between commits in git?
...t forward in time. To go forward multiple commits, use HEAD@{2}, HEAD@{3}, etc.
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Regular Expression for alphanumeric and underscores
... flavors. \w includes letters with diacritics, letters from other scripts, etc.
– Jan Goyvaerts
Dec 3 '08 at 7:45
4
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What's the easy way to auto create non existing dir in ansible
...s
- name: ensure custom facts directory exists
file: >
path=/etc/ansible/facts.d
recurse=yes
state=directory
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Why does the month argument range from 0 to 11 in JavaScript's Date constructor?
... if we'd say January Five, January Sixth, instead of January 5, January 6, etc., then perhaps they'd have made a 0-based enumeration for days too...
Perhaps subconsciously they thought about an enumeration for months as {January, February, ...} and for days as {One, Two, Three, ...}, except for day...
Freeze screen in chrome debugger / DevTools panel for popover inspection?
...r window and you have 5 seconds to find your element and click/hover/focus/etc it, before the breakpoint will be hit and the browser will "freeze".
Now you can inspect your clicked/hovered/focused/etc element in peace.
Of course you can modify the javascript and the timing, if you get the idea.
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Is there an SQLite equivalent to MySQL's DESCRIBE [table]?
...e; the above commands can be run as a query through a library (Python, C#, etc.).
– Mark Rushakoff
Jul 25 '10 at 21:09
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How to set time delay in javascript
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Place your code inside of the { }
500 = 0.5 seconds
2200 = 2.2 seconds
etc.
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How to remove “index.php” in codeigniter's path
...der. This is often a problem if your using a temporary URL on a dev server etc:
RewriteRule ^(.*)$ /subofolder1/subfolder2/index.php/$1 [L]
Just play around with these options, one should work. Also, make sure your index file is set to:
$config['index_page'] = '';
Good luck!
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What are some common uses for Python decorators? [closed]
...ading
lock = threading.Lock()
@synchronized(lock)
def do_something():
# etc
@synchronzied(lock)
def do_something_else():
# etc
Basically it just puts lock.acquire() / lock.release() on either side of the function call.
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