大约有 28,000 项符合查询结果（耗时：0.0457秒） [XML]
Matching a space in regex
... intended.
– Suroot
Feb 18 '09 at 1:05
Quoting: "only allow letters, number and a space", Gavin's original RE was wron...
How to remove RVM (Ruby Version Manager) from my system
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answered Sep 5 '12 at 15:05
Vishnu AtraiVishnu Atrai
2,1051717 silver badges2222 bronze badges
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Define: What is a HashSet?
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answered Dec 30 '10 at 0:05
k reyk rey
56133 silver badges1111 bronze badges
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Initialize class fields in constructor or at declaration?
...be moved into the top of it.
In terms of best practice the former is less error prone than the latter as someone could easily add another constructor and forget to chain it.
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Selecting only first-level elements in jquery
... used
– Ivan Black
Sep 30 '14 at 22:05
This is the preferred answer for me, as I already have the element and so will ...
What is attr_accessor in Ruby?
...rson.
class Person
end
person = Person.new
person.name # => no method error
Obviously we never defined method name. Let's do that.
class Person
def name
@name # simply returning an instance variable @name
end
end
person = Person.new
person.name # => nil
person.name = "Dennis" # =...
How to pass parameters to anonymous class?
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answered Feb 24 '11 at 16:05
aavaav
2,43411 gold badge1515 silver badges2626 bronze badges
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Is it possible to make the -init method private in Objective-C?
...ilable
Add the unavailable attribute to the header to generate a compiler error on any call to init.
-(instancetype) init __attribute__((unavailable("init not available")));
If you don't have a reason, just type __attribute__((unavailable)), or even __unavailable:
-(instancetype) __unavaila...
Track the time a command takes in UNIX/LINUX?
...e builtin overrides that. If I do time -f "\t%E real" ls in bash, I get an error, but it works if I do /usr/bin/time -f "\t%E real" ls.
– Ben Crowell
Jun 17 '17 at 15:24
1
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How to use XPath in Python?
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answered Nov 22 '12 at 1:05
Gringo SuaveGringo Suave
23.3k55 gold badges7676 silver badges6767 bronze badges
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