大约有 47,000 项符合查询结果（耗时：0.1665秒） [XML]
What is the best way to uninstall gems from a rails3 project?
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136
Bundler is launched from your app's root directory so it makes sure all needed gems are presen...
Split code over multiple lines in an R script
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110
You are not breaking code over multiple lines, but rather a single identifier. There is a diff...
Delete first character of a string in Javascript
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14 Answers
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How can I run dos2unix on an entire directory? [closed]
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11 Answers
11
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Python: try statement in a single line
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12 Answers
12
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Get just the filename from a path in a Bash script [duplicate]
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edited Dec 5 '16 at 11:20
answered Jul 29 '10 at 13:29
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How to make a chain of function decorators?
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17 Answers
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Omit rows containing specific column of NA
...ses function and put it into a function thusly:
DF <- data.frame(x = c(1, 2, 3), y = c(0, 10, NA), z=c(NA, 33, 22))
completeFun <- function(data, desiredCols) {
completeVec <- complete.cases(data[, desiredCols])
return(data[completeVec, ])
}
completeFun(DF, "y")
# x y z
# 1 1 0 ...
Dynamically creating keys in a JavaScript associative array
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144
Use the first example. If the key doesn't exist it will be added.
var a = new Array();
a['na...