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Function in JavaScript that can be called only once
...executed. I know from C++ and Java about static variables that can do the work but I would like to know if there is a more elegant way to do this?
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How do I convert uint to int in C#?
.../i will be negative if n > Int32.MaxValue
int i = (int)n; //same behavior as unchecked
or
int i = Convert.ToInt32(n); //same behavior as checked
--EDIT
Included info as mentioned by Kenan E. K.
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Folder is locked and I can't unlock it
When I'm trying to update or commit code from a project it's telling me that the folder is locked. When I try to "release lock" it says that there's nothing to unlock in this working space.
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How to “return an object” in C++?
...title sounds familiar as there are many similar questions, but I'm asking for a different aspect of the problem (I know the difference between having things on the stack and putting them on the heap).
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Iterate through a C++ Vector using a 'for' loop
I am new to the C++ language. I have been starting to use vectors, and have noticed that in all of the code I see to iterate though a vector via indices, the first parameter of the for loop is always something based on the vector. In Java I might do something like this with an ArrayList:
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Custom thread pool in Java 8 parallel stream
Is it possible to specify a custom thread pool for Java 8 parallel stream ? I can not find it anywhere.
15 Answers
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How can I format my grep output to show line numbers at the end of the line, and also the hit count?
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-n returns line number.
-i is for ignore-case. Only to be used if case matching is not necessary
$ grep -in null myfile.txt
2:example two null,
4:example four null,
Combine with awk to print out the line number after the match:
$ grep -in null myfile....
Can you help me understand this? “Common REST Mistakes: Sessions are irrelevant”
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To be RESTful, each HTTP request should carry enough information by itself for its recipient to process it to be in complete harmony with the stateless nature of HTTP.
Okay, I get that HTTP authentication
is done automatically on every message
- but how?
Yes, the usernam...
Understanding slice notation
...nts selected (if step is 1, the default).
The other feature is that start or stop may be a negative number, which means it counts from the end of the array instead of the beginning. So:
a[-1] # last item in the array
a[-2:] # last two items in the array
a[:-2] # everything except the last t...
Make xargs execute the command once for each line of input
How can I make xargs execute the command exactly once for each line of input given?
It's default behavior is to chunk the lines and execute the command once, passing multiple lines to each instance.
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