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Find the day of a week

... 305 df = data.frame(date=c("2012-02-01", "2012-02-01", "2012-02-02")) df$day <- weekdays(as.Dat...
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Express next function, what is it really for?

... | edited Oct 30 '12 at 5:33 answered Oct 30 '12 at 5:26 ...
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Importing Maven project into Eclipse

... answered Jan 14 '10 at 1:33 Pascal ThiventPascal Thivent 524k126126 gold badges10121012 silver badges10991099 bronze badges ...
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How to set thousands separator in Java?

... 110 This should work (untested, based on JavaDoc): DecimalFormat formatter = (DecimalFormat) Number...
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Android studio logcat nothing to show

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How to replace multiple substrings of a string?

...e("|".join(rep.keys())) text = pattern.sub(lambda m: rep[re.escape(m.group(0))], text) For example: >>> pattern.sub(lambda m: rep[re.escape(m.group(0))], "(condition1) and --condition2--") '() and --text--' shar...
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Add a tooltip to a div

...er;" – RayLoveless Mar 19 '14 at 15:07 2 ...
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Accessing inactive union member and undefined behavior?

... +100 The confusion is that C explicitly permits type-punning through a union, whereas C++ (c++11) has no such permission. c11 6.5...
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Input with display:block is not a block, why not?

...ely unknown box-sizing:border-box style from CSS 3. This allows a 'true' 100% width on any element regardless of that elements' padding and/or borders. <!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd"> <html> <head> <meta ht...
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How to sort an array based on the length of each element?

... | edited Jul 20 '18 at 23:43 answered May 17 '12 at 6:24 ...