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Test if a command outputs an empty string
...le in the above example, since a single newline is a valid filename! More information in this answer.
Exit code
If you want to check that the command completed successfully, you can inspect $?, which contains the exit code of the last command (zero for success, non-zero for failure). For exampl...
JavaScript data grid for millions of rows [closed]
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The best Grids in my opinion are below:
Flexigrid: http://flexigrid.info/
jQuery Grid: http://www.trirand.com/blog/
jqGridView: http://plugins.jquery.com/project/jqGridView
jqxGrid: http://www.jqwidgets.com/
Ingrid: http://reconstrukt.com/ingrid/
SlickGrid http://github.com/mleibman/SlickGrid...
What is the difference between persist() and merge() in JPA and Hibernate?
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Thanks for the info. I see the semantics of both definitions. But the question is about the differences between them. Perhaps present the list of states and 2 sub-sections for each different behavior of persist vs merge?
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Integrating Dropzone.js into existing HTML form with other fields
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@TIIUNDER - its prepared for sending form info via ajax call without page reload - thats why there is e.preventDefault();
– born2fr4g
Jun 22 '16 at 11:14
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Revert a range of commits in git
...ctually 6th latest commit. See revision selection in git docs for detailed info about .. notation :-)
– Honza Haering
Feb 3 '17 at 15:09
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Jquery Ajax Posting json to webservice
...');
$('#alertMessage').removeClass('alert-danger alert-info');
initPriceGroupsList();
priceGroupId = 0;
resetForm();
}else{ ...
Are Swift variables atomic?
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I updated my answer with some recent info, hope it helps
– Sash Zats
Jul 20 '15 at 17:45
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“The run destination iOS Device is not valid for running the scheme”
...hone, you can
Target -> select scheme -> General -> Deployment Info -> Device-> select Universal or the current device you want.
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MySQL: Insert record if not exists in table
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to prevent it you need to create a unique index, more info here:link
– Azmeer
Nov 5 '15 at 5:34
V...
Why is Swift compile time so slow?
...tion, but it doesn't stop compiling all Swift files in one step.
For more info on whole module optimization, check out Apple's blog post here - https://swift.org/blog/whole-module-optimizations/
We've found these settings allow our Swift code to compile in 30 seconds :-) I've no evidence of how i...