大约有 39,200 项符合查询结果（耗时：0.0479秒） [XML]
Regex: Specify “space or start of string” and “space or end of string”
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answered Jul 15 '11 at 21:32
Jacob EggersJacob Eggers
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How does std::move() transfer values into RValues?
... even mean and how can it bind to lvalue?
To allow perfect forwarding, C++11 standard provides special rules for reference collapsing, which are as follows:
Object & & = Object &
Object & && = Object &
Object && & = Object &
Object && &&a...
Using current time in UTC as default value in PostgreSQL
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FWIW, running this query in PostgreSQL 11.5: ALTER TABLE testcase_result ADD COLUMN date_created TIMESTAMP WITHOUT TIME ZONE DEFAULT (NOW() AT TIME ZONE "UTC") NOT NULL; fails with: ERROR: column "UTC" does not exist. Make sure 'utc' is all lower-case.
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Ruby Array find_first object?
...ethod if you wanted to return first value where block returns true
[1,2,3,11,34].detect(&:even?) #=> 2
OR
[1,2,3,11,34].detect{|i| i.even?} #=> 2
If you wanted to return all values where block returns true then use select
[1,2,3,11,34].select(&:even?) #=> [2, 34]
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form_for but to post to a different action
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answered Mar 16 '11 at 2:43
AustinAustin
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grepping using the “|” alternative operator
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answered Jul 21 '11 at 12:21
Jeff FosterJeff Foster
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Regular expression for exact match of a string
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Community♦
111 silver badge
answered Apr 22 '11 at 6:29
user237419user237419
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How to use greater than operator with date?
...acktick instead
SELECT * FROM `la_schedule` WHERE `start_date` > '2012-11-18';
SQLFiddle Demo
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How can I remove 3 characters at the end of a string in php?
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answered Feb 6 '11 at 20:10
bensiubensiu
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How do I get an HttpContext object from HttpContextBase in ASP.NET MVC 1?
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edited May 23 '17 at 11:47
Community♦
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answered Dec 31 '10 at 2:34
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