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iphone Core Data Unresolved error while saving

...conflict with the old model implementation. Edit: I almost forgot here's all the error codes that Core Data spits out: Core Data Constants Reference I had trouble with this before and I realised I unchecked the correct optional box. Such trouble finding out the problem. Good luck. ...
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Is it more efficient to copy a vector by reserving and copying, or by creating and swapping? [duplic

... @rlbond Accidentally downvoted the answer :(, Can you please edit the post, so that i can remove the downvote and give the upvote? – Shubham Sharma Jul 24 at 17:32 ...
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how to File.listFiles in alphabetical order?

... File is a comparable class, which by default sorts pathnames lexicographically. If you want to sort them differently, you can define your own comparator. If you prefer using Streams: A more modern approach is the following. To print the names of all files in a given directory, in alphabetical or...
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How to call a PHP function on the click of a button

...essfully"); }); }); }); In ajax.php <?php if (isset($_POST['action'])) { switch ($_POST['action']) { case 'insert': insert(); break; case 'select': select(); break; } } ...
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Eclipse error: 'Failed to create the Java Virtual Machine'

...swered Sep 4 '11 at 22:52 Matt BallMatt Ball 323k8585 gold badges598598 silver badges672672 bronze badges ...
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When is std::weak_ptr useful?

...want to keep them in memory, so you hold a strong pointer to them. Periodically, you scan the cache and decide which objects have not been accessed recently. You don't need to keep those in memory, so you get rid of the strong pointer. But what if that object is in use and some other code holds a s...
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Printing all global variables/local variables?

How can I print all global variables/local variables? Is that possible in gdb? 3 Answers ...
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How to detect when cancel is clicked on file input?

...entListener("focus",fn,{once: true}). However I couldn't get it to fire at all using document.body.addEventListener.. I don't know why. Instead I got the same result with window.addEventListener. – WoodenKitty Aug 13 '16 at 2:21 ...
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Executing elements inserted with .innerHTML

...ad via src. The above script can be changed to check elem.src and conditionally set the src property of the created script element instead of setting its text content. – Ryan Morlok Nov 9 '15 at 15:27 ...
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What's the purpose of using braces (i.e. {}) for a single-line if or loop?

...le is editor-agnostic beyond what you need, but not beyond what people actually use to edit C++. Hence "defensive". – Steve Jessop Aug 30 '12 at 10:11 ...