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What is move semantics?
...surprised if x had changed somehow. Did you notice how I just said x three times (four times if you include this sentence) and meant the exact same object every time? We call expressions such as x "lvalues".
The arguments in lines 2 and 3 are not lvalues, but rvalues, because the underlying string ...
How to check if a user likes my Facebook Page or URL using Facebook's API
... in there, but you get the idea. This will pop up a login dialog the first time the user visits the page (which isn't exactly ideal, but works). On subsequent visits nothing should pop up though.
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In JPA 2, using a CriteriaQuery, how to count results
... doJoins(join.getJoins(), joined);
}
}
Hope it saves somebody's time.
Because IMHO JPA Criteria API is not intuitive nor quite readable.
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How to install a specific version of a ruby gem?
...rails 2.3.5 project and another that's 3.0 that i'm working on at the same time.. how do i use a specific version of rake for each project (ie on command line?)
– abbood
Mar 13 '14 at 8:40
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Semantic Diff Utilities [closed]
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Eclipse has had this feature for a long time. It's called "Structure Compare", and it's very nice. Here is a sample screenshot for Java, followed by another for an XML file:
(Note the minus and plus icons on methods in the upper pane.)
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Is storing a delimited list in a database column really that bad?
...SQL Antipatterns: Avoiding the Pitfalls of Database Programming.
There are times when you need to employ denormalization, but as @OMG Ponies mentions, these are exception cases. Any non-relational “optimization” benefits one type of query at the expense of other uses of the data, so be sure you...
C libcurl get output into a string
I want to store the result of this curl function in a variable, how can I do so?
4 Answers
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Is the ternary operator faster than an “if” condition in Java [duplicate]
... if-conditional syndrome " which means I tend to use if conditions all the time. I rarely ever use the ternary operator. For instance:
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Why use jQuery on() instead of click()
..., function() { // code
});
In the sense that it only add the handler one time to all elements with class elementClass. If you have a new elementClass coming from, for example $('<div class="elementClass" />'), the handler won't be bound on that new element, you need to do:
$('#container').o...
When saving, how can you check if a field has changed?
...where multiple requests can manipulate the same model instance at the same time, you definitely need a different approach.
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