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How to get last N records with activerecord?
...a good way of implementing it, performance-wise - at least not up to Rails 3.1. SomeModel.last(5) will execute the select statement without a limit, returning all records of SomeModel to Ruby as an array, after which Ruby will pick out the last (5) elements. Efficiency-wise, currently, you want to ...
how to use ng-option to set default value of select element
...lues">{{value}}</option> thanks again
– François Romain
Jun 26 '13 at 20:55
2
There has...
Set the location in iPhone Simulator
..., call it MyOffice for example. Make extension as .gpx
<?xml version="1.0"?> <gpx version="1.0" creator="MyName"> <wpt lat="53.936166" lon="27.565370"> <name>MyOffice</name> </wpt> </gpx>
Select in Xcode at the Simulate area Add GPX File to Project...
Add ...
Are soft deletes a good idea? [duplicate]
...
+1: I always soft-delete.
– KMån
Mar 31 '10 at 5:45
3
so you don't have t...
sprintf like functionality in Python
..., it is not removed in Python 3. Python 3.0 said it would be deprecated in 3.1 but I believe that never happened. Using format() may be preferable but % formatting still exists. (See mail.python.org/pipermail/python-dev/2009-September/092399.html for some of the reasoning why it was not deprecated)
...
CSV file written with Python has blank lines between each row
...ted Dec 5 '18 at 20:25
Jean-François Fabre♦
122k1111 gold badges9797 silver badges156156 bronze badges
answered Jul 27 '10 at 22:34
...
How can I trim leading and trailing white space?
...4.7" "3.2" "1.3" "0.2" "setosa"
# 4 "4.6" "3.1" "1.5" "0.2" "setosa"
# 5 "5.0" "3.6" "1.4" "0.2" "setosa"
# 6 "5.4" "3.9" "1.7" "0.4" "setosa"
See also ?print.data.frame for other options.
...
Convert Int to String in Swift
...
s is now (Swift 3.1) String(describing: x) the older syntax yields compiler error.
– Motti Shneor
Mar 9 '17 at 0:55
3
...
What do *args and **kwargs mean? [duplicate]
...elf ).__init__( *args, **kw )
self.myStuff= myStuff
x= Super( 2.7, 3.1 )
y= Sub( "green", 7, 6 )
This way Sub doesn't really know (or care) what the superclass initialization is. Should you realize that you need to change the superclass, you can fix things without having to sweat the deta...
How to implement a ViewPager with different Fragments / Layouts
...guments(b);
return f;
}
}
first_frag.xml
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:background="@android:color/...