大约有 13,913 项符合查询结果（耗时：0.0284秒） [XML]
How to check if a Ruby object is a Boolean
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class X; def !; self end end ; x = X.new ; !!x == x #=> true
– Alexey
Jun 7 '12 at 12:08
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Unauthorised webapi call returning login page rather than 401
...tus of 200 is returned with the following information in the HTTP header.
X-Responded-JSON: {"status":401,"headers":{"location":"http:\/\/localhost:59540\/Account\/Login?ReturnUrl=%2Fapi%2FTestBasic"}}
You could change your logic on the client side to check this information in the header to deter...
Run javascript function when user finishes typing instead of on key up?
I want to trigger an ajax request when the user has finished typing in a text box. I don't want it to run the function on every time the user types a letter because that would result in A LOT of ajax requests, however I don't want them to have to hit the enter button either.
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How can I see the current value of my $PATH variable on OS X?
...o use the command echo $PATH to display the PATH variable or you can just execute set or env to display all of your environment variables.
By typing $PATH you tried to run your PATH variable contents as a command name.
Bash displayed the contents of your path any way. Based on your output the fol...
How to set JAVA_HOME environment variable on Mac OS X 10.9?
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Literally all you have to do is:
echo export "JAVA_HOME=\$(/usr/libexec/java_home)" >> ~/.bash_profile
and restart your shell.
If you have multiple JDK versions installed and you want it to be a specific one, you can use the -v flag to java_home like so:
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Check if a value exists in pandas dataframe index
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This should do the trick
'g' in df.index
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What is the difference between shallow copy, deepcopy and normal assignment operation?
...rmal assignment operations will simply point the new variable towards the existing object. The docs explain the difference between shallow and deep copies:
The difference between shallow and deep copying is only relevant for
compound objects (objects that contain other objects, like lists or
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Resolve Git merge conflicts in favor of their changes during a pull
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git pull -s recursive -X theirs <remoterepo or other repo>
Or, simply, for the default repository:
git pull -X theirs
If you're already in conflicted state...
git checkout --theirs path/to/file
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What is pseudopolynomial time? How does it differ from polynomial time?
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The common intuition for polynomial time is "time O(nk) for some k." For example, selection sort runs in time O(n2), which is polynomial time, while brute-force solving TSP takes time O(n · n!), which isn't polynomial time.
These runtimes all refer to some variable n that tracks the size of the i...
`date` command on OS X doesn't have ISO 8601 `-I` option?
... Yup, awesome answer Thanks!, but this date -u +"%Y-%m-%dT%H:%MZ" exactly I was looking for.
– ChikuMiku
Jan 7 '17 at 14:55
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