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How to change language settings in R
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@0range did you try cd \ and dir Rconsole /s in order to look for multiple files?
– Alessandro Jacopson
Apr 1 at 6:50
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Entity Framework 4 Single() vs First() vs FirstOrDefault()
...turned by a query but you only want to access the first item in your code (ordering could be important in the query here). This will throw an exception if the query does not return at least one item.
FirstOrDefault() - when you expect zero or more items to be returned by a query but you only want to...
What are the Differences Between “php artisan dump-autoload” and “composer dump-autoload”?
...ill need to run composer dump-autoload as well as artisan dump-autoload in order to get all autoloads right. Example: After a migrate:make, you need a composer dump-autoload in order to do a migrate:rollback. artisan dump-autoload does not work here.
– woens
Ma...
What is the mouse down selector in CSS?
... Add in that case I would style the button more fully. By adding a border:0; you lose the bezel around the button and the issue you are having.
– jansmolders86
May 23 '13 at 14:04
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Difference between Fact table and Dimension table?
...out a primary key. For example, a sales table with columns, cust_id, date_ordered, qty, time, location can have all records same if he/she ordered in the same day / same location / same qty twice.
– Manikandan Kbk DIP
Aug 26 at 9:48
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Change text color of one word in a TextView
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USE:
makeTextBold("Your order is accepted","accepted", textView);
makeTextBold("Your order is canceled","canceled", textView);
Function:
public static void makeTextBold(String sentence, String word, AppCompatTextView textView) {
SpannableStri...
Why compile Python code?
...ete and whatever benefits you gained are lost. You need to recompile it in order to get the .pyc or .pyo benefits back again again, such as they may be.
Drawbacks:
First: There's a "magic cookie" in .pyc and .pyo files that indicates the system architecture that the python file was compiled in. If...
TransactionManagementError “You can't execute queries until the end of the 'atomic' block” while usi
...manage.py test -r instead of python manage.py test is ok for me, maybe the order of execution is crucial
then i find a doc about Order in which tests are executed, It mentions which test will run first.
So, i use TestCase for database interaction, unittest.TestCase for other simple test, it works ...
Why is there huge performance hit in 2048x2048 versus 2047x2047 array multiplication?
...r cache thrashing, if I can coin a term.
Caches work by indexing with low order bits and tagging with high order bits.
Imaging that your cache has 4 words and your matrix is 4 x 4. When a column is accessed and the row is any power of two in length, then each column element in memory will map to t...
Useful example of a shutdown hook in Java?
...n sequence it will start all registered shutdown hooks in some unspecified order and let them run concurrently. When all the hooks have finished it will then run all uninvoked finalizers if finalization-on-exit has been enabled. Finally, the virtual machine will halt.
That is, a shutdown hook keep...