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Center a column using Twitter Bootstrap 3
...s Bootstrap's own offset classes so it requires no change in markup and no extra CSS. The key is to set an offset equal to half of the remaining size of the row. So for example, a column of size 2 would be centered by adding an offset of 5, that's (12-2)/2.
In markup this would look like:
<div ...
How are GCC and g++ bootstrapped?
...ilt
(optional) repeat step 2 for verification purposes.
This process is called bootstrapping. It tests the compiler's capability of compiling itself and makes sure that the resulting compiler is built with all the optimizations that it itself implements.
EDIT: Drew Dormann, in the comments, point...
How to expire session due to inactivity in Django?
...with this issue, expiration time can be automatically renewed (for another extra 10 minutes) every time the user performs any kind of request with the following sentence:
request.session.set_expiry(request.session.get_expiry_age())
...
MongoDB/Mongoose querying at a specific date?
...onents. To query those times you need to create a date range that includes all moments in a day.
db.posts.find( //query today up to tonight
{"created_on": {"$gte": new Date(2012, 7, 14), "$lt": new Date(2012, 7, 15)}})
s...
SQL to determine minimum sequential days of access?
...
@Artem: That was what I initially thought but when I thought about it, if you have an index on (UserId, CreationDate), the records will show up consecutively in the index and it should perform well.
– Mehrdad Afshari
...
Delete files older than 10 days using shell script in Unix [duplicate]
... these! Once, using a command very much like this in a cron job, I accidentally deleted every file on my production mail server older than 10 days, which I can tell you was no fun to recover from.
– DSimon
May 28 '14 at 20:00
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Best way to iterate through a Perl array
...ay elements occurs. ($_ is aliased to the element in #1, but #2 and #3 actually copy the scalars from the array.)
#5 might be similar.
In terms memory usage: They're all the same except for #5.
for (@a) is special-cased to avoid flattening the array. The loop iterates over the indexes of the array...
How to loop over files in directory and change path and add suffix to filename
...ch (which makes the loop variable expand to the (un-matching) glob pattern string itself).
For example:
for filename in Data/*.txt; do
[ -e "$filename" ] || continue
# ... rest of the loop body
done
Reference: Bash Pitfalls
...
Why does Unicorn need to be deployed together with Nginx?
... need a reverse proxy. However, this means that it would have to implement extra functionality to do all the things that now nginx does, resulting in a more complex codebase and more engineering efforts.
Instead its creators made the decision to leverage existing software that is battle-tested and ...
Is there any difference between the `:key => “value”` and `key: “value”` hash notations?
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Ruby hash-keys assigned by hash-rockets can facilitate strings for key-value pairs (e.g. 's' => x) whereas key assignment via symbols (e.g. key: "value" or :key => "value") cannot be assigned with strings. Although hash-rockets provide freedom and functionality for hash-ta...