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How can I find the number of days between two Date objects in Ruby?
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irb(main):005:0> a = Date.parse("12/1/2010")
=> #<Date: 4911063/2,0,2299161>
irb(main):007:0> b = Date.parse("12/21/2010")
=> #<Date: 4911103/2,0,2299161>
irb(main):016:0> c = b.mjd - a.mjd
=> 20
This uses a Modified Julian Day Numbe...
Placement of the asterisk in pointer declarations
...es in to the wild I see plenty of both styles. In my team we now use clang-format with a style we've agreed on. This at least means all of the code our team produces has the same style for where the whitespace goes.
– Scott Langham
Mar 30 at 18:36
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Detecting iOS / Android Operating system
...-| |_|a|g|p|s|t)|tp)|hu(aw|tc)|i\-(20|go|ma)|i230|iac( |\-|\/)|ibro|idea|ig01|ikom|im1k|inno|ipaq|iris|ja(t|v)a|jbro|jemu|jigs|kddi|keji|kgt( |\/)|klon|kpt |kwc\-|kyo(c|k)|le(no|xi)|lg( g|\/(k|l|u)|50|54|\-[a-w])|libw|lynx|m1\-w|m3ga|m50\/|ma(te|ui|xo)|mc(01|21|ca)|m\-cr|me(rc|ri)|mi(o8|oa|ts)|mmef|...
HTTP status code for update and delete?
... necessarily imply the same response)
Other errors:
400 Bad Request (Malformed syntax or a bad query is strange but possible).
401 Unauthorized Authentication failure
403 Forbidden: Authorization failure or invalid Application ID.
405 Not Allowed. Sure.
409 Resource Conflict can be possible in co...
How to break a line of chained methods in Python?
...arches. Go through a list of conditionals to mine from your complex query form (or string-based deductions about what the user is looking for), then just explode the dictionary into the filter.
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String formatting: % vs. .format vs. string literal
...int
from datetime import datetime,timedelta
once_upon_a_time = datetime(2010, 7, 1, 12, 0, 0)
delta = timedelta(days=13, hours=8, minutes=20)
gen =(once_upon_a_time +x*delta for x in xrange(20))
print '\n'.join(map('{:%Y-%m-%d %H:%M:%S}'.format, gen))
Results in:
['the number is 12', 'the nu...
Why does C# allow {} code blocks without a preceding statement?
...nglish Dictionary defines this use of bracket as: One of two marks of the form [ ] or ( ), and in mathematical use also {}, used for enclosing a word or number of words, a portion of a mathematical formula, or the like, so as to separate it from the context; In any case they are not parentheses, b...
Finding the number of days between two dates
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$now = time(); // or your date as well
$your_date = strtotime("2010-01-31");
$datediff = $now - $your_date;
echo round($datediff / (60 * 60 * 24));
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How to repeat a string a variable number of times in C++?
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Use one of the forms of string::insert:
std::string str("lolcat");
str.insert(0, 5, '.');
This will insert "....." (five dots) at the start of the string (position 0).
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How to bind inverse boolean properties in WPF?
...r composition and presenting a specialized ViewModel of your entity to the form.
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