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How do I use define_method to create class methods?
...
I prefer using send to call define_method, and I also like to create a metaclass method to access the metaclass:
class Object
def metaclass
class << self
self
end
end
end
class MyClass
# Defines MyClass.my_method
self.metaclass.send(:defi...
What are some uses of decltype(auto)?
... uses
You can also use decltype(auto) in other contexts, e.g. the draft Standard N3936 also states
7.1.6.4 auto specifier [dcl.spec.auto]
1 The auto and decltype(auto) type-specifiers designate a placeholder
type that will be replaced later, either by deduction from an
initializer or by ...
Breakpoints are crossed out, how can I make them valid?
...all breakpoints. There is also an icon for this in the "Breakpoints" View, and there may be a hot-key defined as well, all of which you may have triggered by accident.
Take a look at the Run -> Skip All Breakpoints.
shar...
How to list all Git tags?
In my repository, I have created tags using the following commands.
10 Answers
10
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PHP Redirect with POST data
I did some research on this topic, and there are some experts who have said that it is not possible , so I would like to ask for an alternative solution.
...
Difference between File.separator and slash in paths
What is the difference between using File.separator and a normal / in a Java Path-String?
14 Answers
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Verifying signed git commits?
...ble in the two years since the question was posted: There are now git commands for this task: git verify-commit and git verify-tag can be used to verify commits and tags, respectively.
share
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impr...
Executing periodic actions in Python [duplicate]
... One thing to watch out for here is start time "drift". I just ran a test and my times drifted by +0.05s in about 33 iterations. I was running 1 second polls, and this means a drift of 20% in less than a minute. You can reduce drift by calling the threading.Timer at the start of the function rather...
Using print statements only to debug
I have been coding a lot in Python of late. And I have been working with data that I haven't worked with before, using formulae never seen before and dealing with huge files. All this made me write a lot of print statements to verify if it's all going right and identify the points of failure. But, ...
How do I check if an HTML element is empty using jQuery?
...empty')){
//do something
}
for more info see http://api.jquery.com/is/ and http://api.jquery.com/empty-selector/
EDIT:
As some have pointed, the browser interpretation of an empty element can vary. If you would like to ignore invisible elements such as spaces and line breaks and make the imple...