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How do I check if a number is positive or negative in C#?
How do I check if a number is positive or negative in C#?
17 Answers
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What does it mean in shell when we put a command inside dollar sign and parentheses: $(command)
I just want to understand following line of code in shell. It is used to get the current working directory. I am aware that $(variable) name return the value inside the variable name, but what is $(command) supposed to return? Does it return the value after executing the command? In that case, w...
What is a NullReferenceException, and how do I fix it?
I have some code and when it executes, it throws a NullReferenceException , saying:
28 Answers
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Choosing the default value of an Enum type without having to change values
In C#, is it possible to decorate an Enum type with an attribute or do something else to specify what the default value should be, without having the change the values? The numbers required might be set in stone for whatever reason, and it'd be handy to still have control over the default.
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How to determine the number of days in a month in SQL Server?
I need to determine the number of days in a month for a given date in SQL Server.
28 Answers
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Using C# reflection to call a constructor
I have the following scenario:
2 Answers
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With MySQL, how can I generate a column containing the record index in a table?
Is there any way I can get the actual row number from a query?
8 Answers
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Calculate total seconds in PHP DateInterval
What is the best way to calculate the total number of seconds between two dates? So far, I've tried something along the lines of:
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how to release localhost from Error: listen EADDRINUSE
i am testing a server written in nodejs on windows 7
and when i try to run the tester in the command line i get the following error
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