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Django: Why do some model fields clash with each other?
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edited Feb 19 '12 at 2:40
Community♦
111 silver badge
answered Jul 17 '09 at 10:20
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Count, size, length…too many choices in Ruby?
...static VALUE
rb_ary_count(int argc, VALUE *argv, VALUE ary)
{
long n = 0;
if (argc == 0) {
VALUE *p, *pend;
if (!rb_block_given_p())
return LONG2NUM(RARRAY_LEN(ary));
// etc..
}
}
The code for array.count does a few extra checks but in the end cal...
How do I automatically sort a has_many relationship in Rails?
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edited Apr 10 '09 at 23:44
answered Apr 10 '09 at 21:54
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Rails: convert UTC DateTime to another time zone
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207
time.in_time_zone(time_zone)
Example:
zone = ActiveSupport::TimeZone.new("Central Time (US &...
Updating the list view when the adapter data changes
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answered Nov 16 '10 at 20:23
blindstuffblindstuff
17.5k1010 gold badges4444 silver badges4747 bronze badges
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How do I configure Notepad++ to use spaces instead of tabs?
... Ah Language, now that makes sense.
– deed02392
Dec 5 '13 at 16:05
The Notepad++ documentation is way outda...
Calculate difference between two datetimes in MySQL
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302
USE TIMESTAMPDIFF MySQL function. For example, you can use:
SELECT TIMESTAMPDIFF(SECOND, '2012...
How do I check if a number evaluates to infinity?
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LukeHLukeH
233k5050 gold badges338338 silver badges395395 bronze badges
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How to center a button within a div?
I have a div that's width is 100%.
14 Answers
14
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Does Java casting introduce overhead? Why?
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edited Mar 23 '15 at 19:09
Dave Jarvis
27.6k3535 gold badges157157 silver badges281281 bronze badges
a...