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What is aspect-oriented programming?
I understand object oriented programming, and have been writing OO programs for a long time. People seem to talk about aspect-oriented programming, but I've never really learned what it is or how to use it. What is the basic paradigm?
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Difference between . and : in Lua
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The colon is for implementing methods that pass self as the first parameter. So x:bar(3,4)should be the same as x.bar(x,3,4).
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im...
How can I avoid running ActiveRecord callbacks?
...st investigated this and I think I have a solution. There are two ActiveRecord private methods that you can use:
update_without_callbacks
create_without_callbacks
You're going to have to use send to call these methods. examples:
p = Person.new(:name => 'foo')
p.send(:create_without_callbacks)...
string.charAt(x) or string[x]?
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Bracket notation now works on all major browsers, except for IE7 and below.
// Bracket Notation
"Test String1"[6]
// charAt Implementation
"Test String1".charAt(6)
It used to be a bad idea to use brackets, for these reasons (Source):
This...
int value under 10 convert to string two digit number
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i.ToString("00")
or
i.ToString("000")
depending on what you want
Look at the MSDN article on custom numeric format strings for more options: http://msdn.microsoft.com/en-us/library/0c899ak8(VS.71).aspx
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How do I get the function name inside a function in PHP?
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FUNCTION works for non-class functions as well. Tried on PHP 7.0.8.
– mvsagar
Jul 21 '17 at 13:58
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What does JVM flag CMSClassUnloadingEnabled actually do?
I cannot for the life of me find a definition of what the Java VM flag CMSClassUnloadingEnabled actually does, other than some very fuzzy high-level definitions such as "gets rid of your PermGen problems" ( which it doesn't , btw).
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Async image loading from url inside a UITableView cell - image changes to wrong image while scrollin
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Assuming you're looking for a quick tactical fix, what you need to do is make sure the cell image is initialized and also that the cell's row is still visible, e.g:
- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSInd...
What is the meaning of “non temporal” memory accesses in x86
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Non-Temporal SSE instructions (MOVNTI, MOVNTQ, etc.), don't follow the normal cache-coherency rules. Therefore non-temporal stores must be followed by an SFENCE instruction in order for their results to be seen by other processors in...
Redis strings vs Redis hashes to represent JSON: efficiency?
I want to store a JSON payload into redis. There's really 2 ways I can do this:
3 Answers
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