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In C#, how to check if a TCP port is available?
...Client, that means you're checking open TCP ports. There are lots of good objects available in the System.Net.NetworkInformation namespace.
Use the IPGlobalProperties object to get to an array of TcpConnectionInformation objects, which you can then interrogate about endpoint IP and port.
int po...
Converting String to “Character” array in Java
I want to convert a String to an array of objects of Character class but I am unable to perform the conversion. I know that I can convert a String to an array of primitive datatype type "char" with the toCharArray() method but it doesn't help in converting a String to an array of objects of C...
In Python, what happens when you import inside of a function? [duplicate]
...o through the whole import process again. 1
Does it import once at the beginning whether or not the function is run?
No, it is only imported if and when the function is executed. 2, 3
As for the benefits: it depends, I guess. If you may only run a function very rarely and don't need the modul...
Node.js/Windows error: ENOENT, stat 'C:\Users\RT\AppData\Roaming\npm'
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Manually creating a folder named 'npm' in the displayed path fixed the problem.
More information can be found on Troubleshooting page
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How to get hex color value rather than RGB value?
Using the following jQuery will get the RGB value of an element's background color:
19 Answers
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PHP date() format when inserting into datetime in MySQL
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The problem is that you're using 'M' and 'D', which are a textual representations, MySQL is expecting a numeric representation of the format 2010-02-06 19:30:13
Try: date('Y-m-d H:i:s') which uses the numeric equivalents.
edit: switched G to H, though it m...
Selecting and manipulating CSS pseudo-elements such as ::before and ::after using jQuery
Is there any way to select/manipulate CSS pseudo-elements such as ::before and ::after (and the old version with one semi-colon) using jQuery?
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What __init__ and self do on Python?
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In this code:
class A(object):
def __init__(self):
self.x = 'Hello'
def method_a(self, foo):
print self.x + ' ' + foo
... the self variable represents the instance of the object itself. Most object-oriented languages pas...
Difference between __str__ and __repr__?
What is the difference between __str__ and __repr__ in Python?
23 Answers
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Merging two images in C#/.NET
Simple idea: I have two images that I want to merge, one is 500x500 that is transparent in the middle the other one is 150x150.
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