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How can i use iptables on centos 7? [closed]
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then we can use iptables-save > /etc/sysconfig/iptables
– dgregory
Dec 11 '17 at 6:15
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Find MongoDB records where array field is not empty
All of my records have a field called "pictures". This field is an array of strings.
11 Answers
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PhoneGap: Detect if running on desktop browser
...he 'desktop' and mobile versions. I want to be able to detect if PhoneGap calls will work (ie, is the user on a mobile device that will support PhoneGap).
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Is Big O(logn) log base e?
...nary search tree type of data structures, I see the Big O notation is typically noted as O(logn). With a lowercase 'l' in log, does this imply log base e (n) as described by the natural logarithm? Sorry for the simple question but I've always had trouble distinguishing between the different impli...
Are there any reasons to use private properties in C#?
...et
{
if (_password == null)
{
_password = CallExpensiveOperation();
}
return _password;
}
}
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How do I access command line arguments in Python?
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Python tutorial explains it:
import sys
print(sys.argv)
More specifically, if you run python example.py one two three:
>>> import sys
>>> print(sys.argv)
['example.py', 'one', 'two', 'three']
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Convert string to symbol-able in ruby
Symbols are usually represented as such
7 Answers
7
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How do I remove a property from a JavaScript object?
...t object, then that object will, of course, not be garbage collected until all references to it have disappeared.
delete will only work on properties whose descriptor marks them as configurable.
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Hudson or Teamcity for continuous integration? [closed]
...is easy to use, has been used on huge, very huge, projects (JBoss, JAX-WS, etc) and thus has proven records of success, offers very nice advanced features (e.g. build matrix, build clustering, etc), is open source, has a lot of plugins...
And if support is really an important thing, you can get c...
Stop and Start a service via batch or cmd file?
...32_Service class return codes (Service Not Active,Service Request Timeout, etc) and for many errors will simply return Errorlevel 2.
Look here: http://ss64.com/nt/net_service.html
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