大约有 43,000 项符合查询结果(耗时:0.0664秒) [XML]

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How to check if a user is logged in (how to properly use user.is_authenticated)?

...ng. I need to check if the current site user is logged in (authenticated), and am trying: 6 Answers ...
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Using ZXing to create an Android barcode scanning app [duplicate]

... The ZXing project provides a standalone barcode reader application which — via Android's intent mechanism — can be called by other applications who wish to integrate barcode scanning. The easiest way to do this is to call the ZXing SCAN Intent from yo...
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(HTML) Download a PDF file instead of opening them in browser when clicked

... of downvotes. I assume part of that is that this was answered 4 years ago and as Sarim points out, there is now the HTML 5 download attribute that can handle this. I agree, and think Sarim's answer is good (it probably should be the chosen answer if the OP ever returns). However, this answer is s...
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How do I get the AM/PM value from a DateTime?

... answered Oct 24 '11 at 12:06 AndyAndy 6,97077 gold badges3939 silver badges6666 bronze badges ...
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EF Migrations: Rollback last applied migration?

... answered Aug 13 '12 at 18:38 Andrew PetersAndrew Peters 10.2k44 gold badges3434 silver badges3434 bronze badges ...
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Pod install is staying on “Setting up CocoaPods Master repo”

...e pod install the first line I see is "Setting up CocoaPods Master repo" and after that I can't see anything more, the console stops there. ...
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How to replace an item in an array with Javascript?

... 5346]; You can also use the ~ operator if you are into terse JavaScript and want to shorten the -1 comparison: var index = items.indexOf(3452); if (~index) { items[index] = 1010; } Sometimes I even like to write a contains function to abstract this check and make it easier to understand w...
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Is it possible to have multiple statements in a python lambda expression?

...s a version of sort that creates a new list, rather than sorting in-place, and can be chained. Note that this is probably what you should be using - it's bad practice for your map to have side effects on the original list. Q. How should I get the second lowest item from each list in a sequence of ...
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Xcode debugging - displaying images

I love using the Xcode debugger. You can take a look at a variable's value and even change it. 6 Answers ...
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Compiling Java 7 code via Maven

...the mvn script in your maven installation to see how it's building the command. Perhaps you or someone else has hard-coded a JAVA_HOME in there and forgotten about it. share | improve this answer ...