大约有 31,100 项符合查询结果(耗时:0.0515秒) [XML]

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Check whether a string contains a substring

...lity is to use regular expressions which is what Perl is famous for: if ($mystring =~ /s1\.domain\.com/) { print qq("$mystring" contains "s1.domain.com"\n); } The backslashes are needed because a . can match any character. You can get around this by using the \Q and \E operators. my $substrin...
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Split column at delimiter in data frame [duplicate]

...answered Aug 15 '11 at 19:00 TommyTommy 36k1212 gold badges8484 silver badges7979 bronze badges ...
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ASP.NET MVC Controller Naming Pluralization

...net MVC framework the choice is yours. There is no real conventions. It's my personal opinion but what matters is that you pick a scheme and be consistent! share | improve this answer | ...
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Check if user is using IE

... gone. if (window.document.documentMode) { // Do IE stuff } Here is my old answer (2014): In Edge the User Agent String has changed. /** * detect IEEdge * returns version of IE/Edge or false, if browser is not a Microsoft browser */ function detectIEEdge() { var ua = window.navigator...
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Adding a UILabel to a UIToolbar

I'm trying to add a label to my toolbar. Button works great, however when I add the label object, it crashes. Any ideas? 8 ...
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GitHub: How to make a fork of public repository private?

How can I fork a public repository, but make my fork private? I do have the subscription to support private repositories. 6...
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How can I pass data from Flask to JavaScript in a template?

My app makes a call to an API that returns a dictionary. I want to pass information from this dict to JavaScript in the view. I am using the Google Maps API in the JS, specifically, so I'd like to pass it a list of tuples with the long/lat information. I know that render_template will pass these ...
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How to make a class conform to a protocol in Swift?

... Thanks @Alex; you saved my day, since I've been struggling quite some time to get my Swift class conform to the UICollectionViewDataSource protocol. Adding the NSObject inheritance in my Class solved it! – iOS-Coder ...
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What does it mean when an HTTP request returns status code 0?

... This is not necessarily correct. I've had the same problem, but in my case, a request was never sent. The reason was that a Firefox ad blocker prevented requests whose URLs contain the word banner – Jan Jul 19 '19 at 8:02 ...
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Is there a “null coalescing” operator in JavaScript?

... @LuisAntonioPestana var value = myObj && myObj.property || '' will fall back to '' if either myObj or myObj.property is falsy. – Ates Goral Jan 3 '17 at 15:56 ...