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How to implement has_many :through relationships with Mongoid and mongodb?
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edited Aug 13 '11 at 20:31
answered Aug 13 '11 at 20:06
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Change Default Scrolling Behavior of UITableView Section Header
...dScroll:(UIScrollView *)scrollView {
CGFloat sectionHeaderHeight = 40;
if (scrollView.contentOffset.y<=sectionHeaderHeight&&scrollView.contentOffset.y>=0) {
scrollView.contentInset = UIEdgeInsetsMake(-scrollView.contentOffset.y, 0, 0, 0);
} else if (scrollView.conte...
Search for “does-not-contain” on a DataFrame in pandas
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edited Jan 24 '19 at 20:23
cs95
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Excel VBA - exit for loop
...ExcelHero Done
– nixda
Mar 27 at 15:01
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.NET Global exception handler in console application
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edited May 29 '18 at 14:05
answered Jun 28 '10 at 14:32
H...
Converting an integer to a hexadecimal string in Ruby
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You can give to_s a base other than 10:
10.to_s(16) #=> "a"
Note that in ruby 2.4 FixNum and BigNum were unified in the Integer class.
If you are using an older ruby check the documentation of FixNum#to_s and BigNum#to_s
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Force page scroll position to top at page refresh in HTML
... method on DOM ready:
$(document).ready(function(){
$(this).scrollTop(0);
});
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What's the difference between array_merge and array + array?
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edited Feb 13 at 18:06
Joe DF
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answered Mar...
Converting integer to binary in python
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>>> '{0:08b}'.format(6)
'00000110'
Just to explain the parts of the formatting string:
{} places a variable into a string
0 takes the variable at argument position 0
: adds formatting options for this variable (otherwise it wou...
Simple calculations for working with lat/lon and km distance?
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The approximate conversions are:
Latitude: 1 deg = 110.574 km
Longitude: 1 deg = 111.320*cos(latitude) km
This doesn't fully correct for the Earth's polar flattening - for that you'd probably want a more complicated formula using the WGS84 reference ellipsoid (the model used ...