大约有 13,000 项符合查询结果(耗时:0.0368秒) [XML]

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What is the difference between a pseudo-class and a pseudo-element in CSS?

... The CSS 3 selector recommendation is pretty clear about both, but I'll try to show the differences anyway. Pseudo-classes Official description The pseudo-class concept is introduced to permit selection based on information that l...
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Python pandas Filtering out nan from a data selection of a column of strings

... }, onDemand: true, discardSelector: ".discard-answer" ,immediatelyShowMarkdownHelp:true,enableSnippets:true }); } }); ...
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UITapGestureRecognizer breaks UITableView didSelectRowAtIndexPath

...ch.view isDescendantOfView:autocompleteTableView]) { // Don't let selections of auto-complete entries fire the // gesture recognizer return NO; } return YES; } That took care of it. Hopefully this will help others as well. ...
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Getting jQuery to recognise .change() in IE

..., in my testing this is not correct and jquery's click does trigger when i select the next radio button using arrow keys. (vista, ie7) – svandragt Nov 7 '08 at 13:51 1 ...
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Enums and Constants. Which to use when?

...ype. You can change the default from int to any other integral type except char like: enum LongEnum : long { foo, bar, } You can cast explicitly from and implicitly to the the base type, which is useful in switch-statements. Beware that one can cast any value of the base type to an enum, ...
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What does $_ mean in PowerShell?

...dItem | Add-Member -Type NoteProperty -Name Bar -Value $_.Name -PassThru | Select Bar ... Well, it can work if you have a $_ in the scope where you're executing that pipeline. But that's very different from what you usually mean when trying to write something like that. – Joey ...
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Does Java have something like C#'s ref and out keywords?

...his should be expanded on some. You can only pass primitives (int, short, char, etc.) as value. And no, there is no out. – Corey Sunwold May 10 '10 at 21:26 ...
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Getting current device language in iOS?

... will actually return the current region of the device - not the currently selected language. These are often one and the same. However, if I am in North America and I set my language to Japanese, my region will still be English (United States). In order to retrieve the currently selected language, ...
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How to select first parent DIV using jQuery?

... Use .closest() to traverse up the DOM tree up to the specified selector. var classes = $(this).parent().closest('div').attr('class').split(' '); // this gets the parent classes. share | ...
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Return array in a function

...llarr(int arr[]){ array[0] = 10; array[1] = 5; } int main(int argc, char* argv[]){ int arr[] = { 1,2,3,4,5 }; // arr[0] == 1 // arr[1] == 2 etc int result = fillarr(arr); // arr[0] == 10 // arr[1] == 5 return 0; } I suggest you might want to consider putting a leng...