大约有 15,461 项符合查询结果(耗时:0.0295秒) [XML]

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Check whether HTML element has scrollbars

What's the fastest way of checking whether an element has scroll bars? 11 Answers 11 ...
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Spring Boot JPA - configuring auto reconnect

... the following to your application.properties up to 1.3 spring.datasource.testOnBorrow=true spring.datasource.validationQuery=SELECT 1 As djxak noted in the comment, 1.4+ defines specific namespaces for the four connections pools Spring Boot supports: tomcat, hikari, dbcp, dbcp2 (dbcp is deprecat...
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How to Compare Flags in C#?

....NET 4 there is a new method Enum.HasFlag. This allows you to write: if ( testItem.HasFlag( FlagTest.Flag1 ) ) { // Do Stuff } which is much more readable, IMO. The .NET source indicates that this performs the same logic as the accepted answer: public Boolean HasFlag(Enum flag) { if (!t...
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Relative URL to a different port number in a hyperlink?

....location.origin; target.port = port[1]; } } }, false); Tested in Firefox 4 Fiddle: http://jsfiddle.net/JtF39/79/ Update: Bug fixed for appending port to end of url and also added support for relative and absolute urls to be appended to the end: <a href=":8080/test/blah"&g...
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How to run function in AngularJS controller on document ready?

...ded way to reference the document element. You don't have to, but it makes testing way easier. – Jason Cox Oct 1 '14 at 1:29 10 ...
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Test if string is a number in Ruby on Rails

...cases expected. If they are relatively uncommon casting is definitely fastest. If false cases are common and you are just checking for ints, comparison vs a transformed state is a good option. If false cases are common and you are checking floats, regexp is probably the way to go If performance ...
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Temporarily disable auto_now / auto_now_add

... I've recently faced this situation while testing my application. I needed to "force" an expired timestamp. In my case I did the trick by using a queryset update. Like this: # my model class FooBar(models.Model): title = models.CharField(max_length=255) upda...
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Why do assignment statements return a value?

...tanding is 100% incorrect." -- While the OP's use of English isn't the greatest, his/her "understanding" is about what should be the case, making it an opinion, so it isn't the sort of thing than can be "100% incorrect". Some language designers agree with the OP's "should", and make assignments have...
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In CMake, how can I test if the compiler is Clang?

...;LANG>_COMPILER_ID value for Apple-provided Clang is now AppleClang. To test for both the Apple-provided Clang and the regular Clang use the following if condition: if (CMAKE_CXX_COMPILER_ID MATCHES "Clang") # using regular Clang or AppleClang endif() Also see the AppleClang policy description...
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How to remove unused C/C++ symbols with GCC and ld?

...unreferenced sections): -Wl,--gc-sections So if you had one file called test.cpp that had two functions declared in it, but one of them was unused, you could omit the unused one with the following command to gcc(g++): gcc -Os -fdata-sections -ffunction-sections test.cpp -o test -Wl,--gc-sections...