大约有 36,010 项符合查询结果(耗时:0.0295秒) [XML]
How do I check if a number evaluates to infinity?
...o test for. I agree that using isFinite is almost always the better way to do things -- that's why I mentioned it in my answer -- but only the OP can decide whether it meets their requirements.
– LukeH
Jan 18 '11 at 15:58
...
Remove duplicate elements from array in Ruby
...of the ruby language...it's just the beauty of the ruby standard library? don't get me wrong, there are a lot of beautiful things about the language.
– Justin L.
May 20 '13 at 8:58
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jQuery: Test if checkbox is NOT checked
...se is:
if($("#checkSurfaceEnvironment-1").prop('checked') == true){
//do something
}
If you want to iterate over checked elements use the parent element
$("#parentId").find("checkbox").each(function(){
if ($(this).prop('checked')==true){
//do something
}
});
More info:
Th...
One DbContext per web request… why?
..., you probably still want to Dispose all created instances. If you want to do this, you basically have two options. You need to dispose them in the same method right after calling context.SaveChanges(), but in that case the business logic takes ownership of an object it gets passed on from the outsi...
In which order do CSS stylesheets override?
...ually, !important participates directly in the cascade, and has nothing to do with specificity. Specificity is related to selectors, whereas !important is used with property declarations. (So you're right in saying that the rules are complex! ;)
– BoltClock♦
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What does |= (ior) do in Python?
Google won't let me search |= so I'm having trouble finding relevant documentation. Anybody know?
8 Answers
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How do you properly use namespaces in C++?
...::MyClass();
Or, if you want to always use a specific namespace, you can do this:
using namespace MyNamespace;
MyClass* pClass = new MyClass();
Edit: Following what bernhardrusch has said, I tend not to use the "using namespace x" syntax at all, I usually explicitly specify the namespace when ...
How do I change the highlight style in Vim spellcheck?
Right now, when I do :set spell in my Vim, I get spelling errors highlighted as if they are selected text. What I want is an MS-Word like underlining of spelling errors. I tried to lookup :help spell but could not find a clue. Any help is appreciated.
...
How do I call an Angular.js filter with multiple arguments?
As from the documentation , we can call a filter such as date like this:
6 Answers
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Unsafe JavaScript attempt to access frame with URL
...y to set a hash value to the parent url from iframe which contains another domain url:
6 Answers
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