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What does .class mean in Java?
... right away when you start building your project. It's something that you know you need after trying to manage already working code. Many times you need it to manage multiple instances of your program. Maybe you want to identify each particular 'clone' to determine if something is already defined, o...
How to generate XML file dynamically using PHP?
...ree.
For reference you can read http://it.php.net/manual/en/book.dom.php
Now we will take a quick tour of the code below.
at line 2 we create an empty xml document
(just specify xml version (1.0) and encoding (utf8))
now we need to populate the xml tree:
We have to create an xmlnode (line 5...
Does MySQL index foreign key columns automatically?
...5 seconds. Added an index on the fkey column, and things go under a second now.
– AbiusX
Feb 1 '16 at 23:14
Same exper...
How do I create a variable number of variables?
... # prints bar, because indices start at 0
lst.append('potatoes') # lst is now ['foo', 'bar', 'baz', 'potatoes']
For ordered sequences, lists are more convenient than dicts with integer keys, because lists support iteration in index order, slicing, append, and other operations that would require a...
How to get git diff with full context?
...
I know this is old, but I also dislike hard-coded solutions, so I tested this:
git diff -U$(wc -l MYFILE)
Using -U seems to be the only way to approach the issue, but using a line count promises that it will work for even a s...
What is the proper way to test if a parameter is empty in a batch file?
...
if "!param1!"=="" ( echo it is empty )
rem ... or use the DEFINED keyword now
if defined param1 echo There is something
The advantage of this is that dealing with param1 is absolutly safe.
And the setting of param1 will work in many cases, like
test.bat hello"this is"a"test
test.bat you^&...
Prevent browser from loading a drag-and-dropped file
...oad outside of the actual file-upload drop-zone, and then wonders why they now see that same file rendered directly in the browser window (assuming a compatible file type like an image or video was dropped), rather than the expected behavior of seeing their file upload.
– blueb...
Why are my PowerShell scripts not running?
...ing Windows 10 and Windows 2012 R2 without issue.
Here is what I am using now. This keeps me from accidentally running the script by clicking on it. When I run it in the scheduler I add one argument: "scheduler" and that bypasses the prompt.
This also pauses the window at the end so I can see the ...
Use of #pragma in C
... thread 3
Note that the order of output can vary on different machines.
now let me tell you what #pragma did...
it tells the OS to run the some block of code on 4 threads
this is just one of many many applications you can do with the little #pragma
sorry for the outside sample OpenMP
...
Value cannot be null. Parameter name: source
...t.Count(null);
I found that passing null here was causing the error so I now call the parameter-less method if the filter is null:
if (filter == null)
{
return dbSet.Count();
}
else
{
return dbSet.Count(filter);
}
This sorted the issue for me. This may be an issue for any other...