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JPA getSingleResult() or null
I have an insertOrUpdate method which inserts an Entity when it doesn't exist or update it if it does. To enable this, I have to findByIdAndForeignKey , if it returned null insert if not then update. The problem is how do I check if it exists? So I tried getSingleResult . But it throws an ex...
C++ equivalent of Java's toString?
...o a stream, i.e. cout , for an object of a custom class. Is that possible in C++? In Java you could override the toString() method for similar purpose.
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Why {} + {} is NaN only on the client side? Why not in Node.js?
While [] + [] is an empty string, [] + {} is "[object Object]" , and {} + [] is 0 . Why is {} + {} NaN?
1 Answer
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Can I tell the Chrome script debugger to ignore jquery.js?
...ere a way to tell the Chrome debugger (or maybe Firebug?) to not break within certain files? To assume they're not broken, essentially? This seems like something they might build in.
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Can I use jQuery with Node.js?
... it possible to use jQuery selectors/DOM manipulation on the server-side using Node.js?
21 Answers
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Why does “split” on an empty string return a non-empty array?
Split on an empty string returns an array of size 1 :
8 Answers
8
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How to list the size of each file and directory and sort by descending size in Bash?
I found that there is no easy to get way the size of a directory in Bash?
11 Answers
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How do I write a custom init for a UIView subclass in Swift?
Say I want to init a UIView subclass with a String and an Int .
5 Answers
5
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Missing styles. Is the correct theme chosen for this layout?
I tried every solutions available to solve this problem but nothing seems to work. I have included library in the manifest file. I even created style is styles.xml, I have chosen Google Apis build target as well.
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Configure IIS Express for external access to VS2010 project
I am developing a project in VS2010 and am able to view my site locally via IIS Express. I would like to enable external access over the network.
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