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How to get UTC timestamp in Ruby?
...alar value, e.g. seconds since the Unix epoch, 100-ns intervals since 1601 or maybe a string for display purposes or storing the timestamp in a database, you can readily get that from the object. But that depends very much on your intended use.
Saying that »a true timestamp is the number of second...
Where is svcutil.exe in Windows 7?
For my WCF, I need to generate configuration file for my client application to specify things such as binding of service, the address of the service and the contract.
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How to navigate back to the last cursor position in Visual Studio?
What is the keyboard shortcut navigate back to the last cursor position in Visual Studio?
5 Answers
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What is Bit Masking?
...ing a mask to a value. This is accomplished by doing:
Bitwise ANDing in order to extract a subset of the bits in the value
Bitwise ORing in order to set a subset of the bits in the value
Bitwise XORing in order to toggle a subset of the bits in the value
Below is an example of extracting a subs...
Async/await vs BackgroundWorker
...
async/await is designed to replace constructs such as the BackgroundWorker. While you certainly can use it if you want to, you should be able to use async/await, along with a few other TPL tools, to handle everything that's out there.
Since both work, it comes down to personal preference as ...
How to select rows from a DataFrame based on column values?
...(df['column_name'] <= B)]
Note the parentheses. Due to Python's operator precedence rules, & binds more tightly than <= and >=. Thus, the parentheses in the last example are necessary. Without the parentheses
df['column_name'] >= A & df['column_name'] <= B
is parsed as
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Python unit test with base and sub class
... so your class with common tests doesn't itself inherit from TestCase.
import unittest
class CommonTests(object):
def testCommon(self):
print 'Calling BaseTest:testCommon'
value = 5
self.assertEquals(value, 5)
class SubTest1(unittest.TestCase, CommonTests):
def te...
How to normalize a NumPy array to within a certain range?
After doing some processing on an audio or image array, it needs to be normalized within a range before it can be written back to a file. This can be done like so:
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Difference between the 'controller', 'link' and 'compile' functions when defining a directive
Some places seem to use the controller function for directive logic and others use link. The tabs example on the angular homepage uses controller for one and link for another directive. What is the difference between the two?
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How to select a radio button by default? [duplicate]
...s not actually matter; it's just a convention to assign "checked". Most importantly, strings like "true" or "false" don't have any special meaning.
If you don't aim for XHTML conformance, you can simplify the code to:
<input type="radio" name="imgsel" value="" checked>
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