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What new capabilities do user-defined literals add to C++?
...terals which will allow the introduction of new literal syntax based on existing literals ( int , hex , string , float ) so that any type will be able to have a literal presentation.
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jquery - return value using ajax result on success
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The trouble is that you can not return a value from an asynchronous call, like an AJAX request, and expect it to work.
The reason is that the code waiting for the response has already executed by the time the response is received.
The ...
JavaScript window resize event
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jQuery is just wrapping the standard resize DOM event, eg.
window.onresize = function(event) {
...
};
jQuery may do some work to ensure that the resize event gets fired consistently in all browsers, but I'm not sure if any of...
What is “pom” packaging in maven?
...een googling quite a bit. It seems like the top level pom.xml files in this project have the packaging type set as pom .
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How to get ID of the last updated row in MySQL?
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I've found an answer to this problem :)
SET @update_id := 0;
UPDATE some_table SET column_name = 'value', id = (SELECT @update_id := id)
WHERE some_other_column = 'blah' LIMIT 1;
SELECT @update_id;
EDIT by aefxx
This technique can be further expa...
How do I find the MySQL my.cnf location
Is there a MySQL command to locate the my.cnf configuration file, similar to how PHP's phpinfo() locates its php.ini ?
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What is the most efficient way of finding all the factors of a number in Python?
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from functools import reduce
def factors(n):
return set(reduce(list.__add__,
([i, n//i] for i in range(1, int(n**0.5) + 1) if n % i == 0)))
This will return all of the factors, very quickly, of a number n.
Why square root as the upper limit?
sqrt(x) * sqrt(x) = x. So ...
Detect when an image fails to load in Javascript
Is there a way to determine if a image path leads to an actual image, Ie, detect when an image fails to load in Javascript.
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How do you properly use namespaces in C++?
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Namespaces are packages essentially. They can be used like this:
namespace MyNamespace
{
class MyClass
{
};
}
Then in code:
MyNamespace::MyClass* pClass = new MyNamespace::MyClass();
Or, if you want to always use a specific namespace, you can do this:
using namespace MyNam...
Convert python datetime to epoch with strftime
....org/library/datetime.html#strftime-and-strptime-behavior it's not in the list), the only reason it's working is because Python is passing the information to your system's strftime, which uses your local timezone.
>>> datetime.datetime(2012,04,01,0,0).strftime('%s')
'1333234800'
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