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What does “Object reference not set to an instance of an object” mean? [duplicate]
...odified in such a way that the NullReferenceException should never be seen by a user:
static void Main(string[] args)
{
var exampleClass = new ExampleClass();
var returnedClass = exampleClass.ExampleMethod();
if (returnedClass == null)
{
//throw a meaningful exception or gi...
typeof for RegExp
...r example, checking if such object has any vital methods or properties, or by its internal class value (by using {}.toString.call(instaceOfMyObject)).
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EOL conversion in notepad ++
...al hundreds or thousands files.
"Replace in files" in "Find in files" tab, by file filter of you choice, e.g., *.cpp *.cs under one specified directory.
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While loop to test if a file exists in bash
... it doesn't work?
You might try to figure out if the file actually exists by adding:
while [ ! -f /tmp/list.txt ]
do
sleep 2 # or less like 0.2
done
ls -l /tmp/list.txt
You might also make sure that you're using a Bash (or related) shell by typing 'echo $SHELL'. I think that CSH and TCSH use a...
Keep ignored files out of git status
...ate-index --assume-unchanged <file>
or remove them from repository by
git rm --cached <file>
Edit
This article explains that too
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Finding duplicates in O(n) time and O(1) space
...s without blowing the linear time/constant space bounds. This can be done by replacing his second loop with the following pseudocode:
for (i = 0; i < N; ++i) {
if (A[i] != i && A[A[i]] == A[i]) {
print A[i];
A[A[i]] = i;
}
}
This exploits the property that afte...
How to install grunt and how to build script with it
...('default', ['concat']);
};
Now you'll be ready to run your build process by following command:
grunt
I hope this give you an idea how to work with GruntJS build.
NOTE:
You can use grunt-init for creating Gruntfile.js if you want wizard-based creation instead of raw coding for step 5.
To ...
The requested operation cannot be performed on a file with a user-mapped section open
...ays there among other
tabs... so you end up with the assembly being locked by VS
itself and it took me quite a lot of time to figure that out :)
Be careful with the power VS provides ;)
Another dummy scenario. Sometimes simply deleting the whole obj
folder or just the file warned as the locked one ...
Is there a way to avoid null check before the for-each loop iteration starts? [duplicate]
... turned out to be bad design for me. The place I placed them was then used by JAX - B to unmarshall data These lists are immutable and it would try and add to them. I think you should consider this too stackoverflow.com/questions/5552258/…
– Abs
Jun 4 '15 at ...
Intermittent log4net RollingFileAppender locked file issue
...e seeing an intermittent issue on development and production machines whereby our log files are not getting logged to.
3 An...