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val() vs. text() for textarea
...text('test').val('too').text()); // Prints test
The value property, used by .val() always shows the current visible value, whereas text()'s return value can be wrong.
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plot a circle with pyplot
...results in the following figure:
The first circle is at the origin, but by default clip_on is True, so the circle is clipped when ever it extends beyond the axes. The third (green) circle shows what happens when you don't clip the Artist. It extends beyond the axes (but not beyond the figure, ie ...
Difference Between One-to-Many, Many-to-One and Many-to-Many?
... ("I love her, but she doesn't love me")!
All of these are well supported by Hibernate and JPA. Just remember that Hibernate or any other ORM doesn't give a hoot about maintaining symmetry when managing bi-directional many-to-many relationships...thats all up to the application.
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Difference between rake db:migrate db:reset and db:schema:load
...creating versions of schema. db:migrate will look in db/migrate/ for any ruby files and execute the migrations that aren't run yet starting with the oldest. Rails knows which file is the oldest by looking at the timestamp at the beginning of the migration filename. db:migrate comes with a benefit th...
Check existence of directory and create if doesn't exist
... Oh damn, so I've been doing my if statements wrong as well by using |, is the vectorization the reason it doesn't work with || sometimes? I know this is off topic but I'm just too eager to find out. I'll defo go and read more about vectorization. Thanks
– Bas
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Regular expression to match URLs in Java
...*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the s...
Does Python have an ordered set?
... unique. Thus, if one disregards the values in an ordered dictionary (e.g. by assigning them None), then one has essentially an ordered set.
As of Python 3.1 there is collections.OrderedDict. The following is an example implementation of an OrderedSet. (Note that only few methods need to be defined...
Fastest way to check if a file exist using standard C++/C++11/C?
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However, it may fail if file was locked by another program or if there's no access to the file.
– Jet
Jun 8 '15 at 18:48
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What is the difference between “Rollback…” and “Back Out Submitted Changelist #####” in Perforce P4V
... clobber any changes that you actually want to keep.
Both operations work by essentially submitting old revisions as new revisions. When you perform a "Rollback...", you are restoring the files to the state they were in at a specific point in time, regardless of what has happened to them since. W...
Script parameters in Bash
...rs to the argument. $0 is the command itself.
The arguments are seperated by spaces, so if you would provide the -from and -to in the command, they will end up in these variables too, so for this:
./ocrscript.sh -from /home/kristoffer/test.png -to /home/kristoffer/test.txt
You'll get:
$0 # o...