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MySQL JOIN the most recent row only?
...changes made to the customer, i.e. when there's a change made a new row is inserted.
8 Answers
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Why is a ConcurrentModificationException thrown and how to debug it
I am using a Collection (a HashMap used indirectly by the JPA, it so happens), but apparently randomly the code throws a ConcurrentModificationException . What is causing it and how do I fix this problem? By using some synchronization, perhaps?
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Why does (“foo” === new String(“foo”)) evaluate to false in JavaScript?
I was going to start using === (triple equals, strict comparison) all the time when comparing string values, but now I find that
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Is int[] a reference type or a value type?
I know an int is a value type, but what are arrays of value types? Reference types? Value types? I want to pass an array to a function to check something. Should I just pass the array, as it will just pass the reference of it, or should I pass it as ref?
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How do I check if a string is valid JSON in Python?
In Python, is there a way to check if a string is valid JSON before trying to parse it?
4 Answers
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@AspectJ pointcut for all methods of a class with specific annotation
...@Monitor) (note: Annotation is at class level). What could be a possible pointcut for this?
Note: I am using @AspectJ style Spring AOP.
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How should one use std::optional?
I'm reading the documentation of std::experimental::optional and I have a good idea about what it does, but I don't understand when I should use it or how I should use it. The site doesn't contain any examples as of yet which leaves it harder for me to grasp the true concept of this object. When...
ImportError: numpy.core.multiarray failed to import
I'm trying to run this program
26 Answers
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Javascript seconds to minutes and seconds
...s a common problem but I'm not sure how to solve it. The code below works fine.
27 Answers
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Return XML from a controller's action in as an ActionResult?
What is the best way to return XML from a controller's action in ASP.NET MVC? There is a nice way to return JSON, but not for XML. Do I really need to route the XML through a View, or should I do the not-best-practice way of Response.Write-ing it?
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