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How to create a hex dump of file containing only the hex characters without spaces in bash?
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How do I set the maximum line length in PyCharm?
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Is Java Regex Thread Safe?
...= email_pattern.matcher(email);
return matcher.matches();
}
}
see http://zoomicon.wordpress.com/2012/06/01/validating-e-mails-using-regular-expressions-in-java/ (near the end) regarding the RegEx pattern used above for validating e-mails (in case it doesn't fit ones needs for e-mail validat...
How to bind a List to a ComboBox?
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In HTML I can make a checkmark with ✓ . Is there a corresponding X-mark?
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How to profile a bash shell script slow startup?
My bash shell takes up to 3-4 seconds to start up, while if I start it with --norc it runs immediately.
7 Answers
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Rails “validates_uniqueness_of” Case Sensitivity
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There is a similar question but the answer is more interesting: https://stackoverflow.com/a/6422771
Basically, using :case_sensitive => false performs a very inefficient database query.
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How do I target only Internet Explorer 10 for certain situations like Internet Explorer-specific CSS
How do I target only Internet Explorer 10 for certain situations like Internet Explorer-specific CSS or Internet Explorer-specific JavaScript code?
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What is the correct SQL type to store a .Net Timespan with values > 24:00:00?
...No conversions needed if you only need to store 24 hours or less.
Source: http://msdn.microsoft.com/en-us/library/cc716729(v=vs.110).aspx
But, if you want to store more than 24h, you are going to need to store it in ticks, retrieve the data and then convert to TimeSpan. For example
int timeData =...
Check if OneToOneField is None in Django
...is behavior was actually corrected in Python 3.2 per the following ticket: http://bugs.python.org/issue9666. Furthermore — and at the risk of sounding opinionated — I believe the above try / except construct is more representative of how Django works, while using hasattr can cloud the issue for ...