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How can you check for a #hash in a URL using JavaScript?
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Unique ways to use the Null Coalescing operator [closed]
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Copy a stream to avoid “stream has already been operated upon or closed”
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Android - How to get application name? (Not package name)
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How to use wait and notify in Java without IllegalMonitorStateException?
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C++11 introduced a standardized memory model. What does it mean? And how is it going to affect C++ p
C++11 introduced a standardized memory model, but what exactly does that mean? And how is it going to affect C++ programming?
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How Do I Get the Query Builder to Output Its Raw SQL Query as a String?
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Find the day of a week
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df = data.frame(date=c("2012-02-01", "2012-02-01", "2012-02-02"))
df$day <- weekdays(as.Date(df$date))
df
## date day
## 1 2012-02-01 Wednesday
## 2 2012-02-01 Wednesday
## 3 2012-02-02 Thursday
Edit: Just to show another way...
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How to remove certain characters from a string in C++?
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