大约有 47,000 项符合查询结果（耗时：0.0491秒） [XML]
argparse: identify which subparser was used [duplicate]
...l "only contain attributes for the main parser and the sub parser that was selected". Unfortunately this may not be enough information to determine which sub parser was used. The documentation recommends using the set_defaults(...) method on the sub parser to solve this problem.
For example, I've a...
Swift equivalent of [NSBundle bundleForClass:[self class]]
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The selected answer did not work for me in a static method of a UIView subclass, but I found this:
Bundle(for: self.classForCoder)
This also works when you want to get the Bundle within a test target.
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clearing a char array c
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FYI - indent code by 4 spaces or select it and hit the 'code' button, which looks like two lines of binary.
– user229044♦
Dec 10 '10 at 20:46
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Find the version of an installed npm package
...ix based systems, on Windows you can use PowerShell for similar results: | select-string module_name to filter the module. Or, if you're using Git Bash (or just Bash, for that matter), you can use grep.
– Noel
Feb 12 '16 at 20:33
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How to randomize (or permute) a dataframe rowwise and columnwise?
...ple(1:n()))
or
df2 <- sample_frac(df1, 1L)
column-wise:
df2 <- select(df1, one_of(sample(names(df1))))
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How to format a Java string with leading zero?
... your own function. That would be a much better general solution than the selected answer. docjar.com/html/api/org/apache/commons/lang/…
– kaliatech
Oct 29 '10 at 13:01
3
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Amend a commit that wasn't the previous commit [duplicate]
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Have I misunderstood? It seems you actually have to select a commit before the one you want to change. If sha1 is the hash of the commit you want to change, you'd specify sha1^ on the rebase command. Otherwise, the commit to change doesn't appear in the list.
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How to switch databases in psql?
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You can select the database when connecting with psql. This is handy when using it from a script:
sudo -u postgres psql -c "CREATE SCHEMA test AUTHORIZATION test;" test
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Find number of months between two Dates in Ruby on Rails
...ta transformations:
(date1.beginning_of_month...date2.beginning_of_month).select { |date| date.day == 1 }.size
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How to set MSDN to be always in English
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You can select your default language from bottom left of the page.
Edit
New docs site has an easier option to view in English. However, the setting is not permanent.
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