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What's the fastest way to merge/join data.frames in R?
....31 0.01 NA NA
2 plyr 1 0.44 1.294118 0.39 0.02 NA NA
1 merge 1 1.17 3.441176 1.10 0.04 NA NA
4 sqldf 1 3.34 9.823529 3.24 0.04 NA NA
The output from...
TypeError: 'NoneType' object is not iterable in Python
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answered Oct 8 '10 at 2:57
vanzavanza
8,21311 gold badge2727 silver badges3333 bronze badges
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In-App Billing test: android.test.purchased already owned
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Hussnain Hashmi
6888 bronze badges
answered Dec 20 '12 at 8:27
Aashutosh SharmaAashutosh Sharma
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CSS: Setting width/height as Percentage minus pixels
...ing for CSS3-compliant browsers, you can use calc:
height: calc(100% - 18px);
It's worth it to note that not all browsers currently support the standard CSS3 calc() function, so implementing the browser specific versions of the function may be required like the following:
/* Firefox */
height:...
Getting the difference between two sets
...lly want that.
– Praveen Kumar
Jul 18 '14 at 8:09
136
How can Java have the gall to call this dat...
Disable cross domain web security in Firefox
...is comment implies there is no built-in way in Firefox to do this (as of 2/8/14).
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How to determine if an NSDate is today?
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In macOS 10.9+ & iOS 8+, there's a method on NSCalendar/Calendar that does exactly this!
- (BOOL)isDateInToday:(NSDate *)date
So you'd simply do
Objective-C:
BOOL today = [[NSCalendar currentCalendar] isDateInToday:date];
Swift 3:
let to...
Jackson databind enum case insensitive
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38
In version 2.4.0 you can register a custom serializer for all the Enum types (link to the github...
How can I create a “Please Wait, Loading…” animation using jQuery?
... Width, height, top and left speak
for themselves. Background we set to 80% white with
our animation centered, and no-repeating */
.modal {
display: none;
position: fixed;
z-index: 1000;
top: 0;
left: 0;
height: 100%;
width: 100%;
b...
Why can't a 'continue' statement be inside a 'finally' block?
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edited Sep 18 '13 at 11:01
answered Aug 1 '13 at 10:15
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