大约有 47,000 项符合查询结果(耗时:0.0449秒) [XML]

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How do I see if Wi-Fi is connected on Android?

...is to work. NOTE2: public NetworkInfo getNetworkInfo (int networkType) is now deprecated: This method was deprecated in API level 23. This method does not support multiple connected networks of the same type. Use getAllNetworks() and getNetworkInfo(android.net.Network) instead. NOTE3: pub...
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Why do people put code like “throw 1; ” and “for(;;);” in front of json responses? [du

...Chrome (5) are still vulnerable to this. Another attack that all browsers now disallow was to redefine constructor functions: Array= function() { alert('I steal '+this); }; [1, 2, 3] And for now, IE8's implementation of properties (based on the ECMAScript Fifth Edition standard and Object.d...
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What programming practice that you once liked have you since changed your mind about? [closed]

...tial to confuse/complicate //things but can make the code hard to follow. Now I spend more time on //improving the simplicity and readability of the code and inserting fewer yet //relevant comments, instead of spending that time writing overly-descriptive //commentaries all throughout the code. ...
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How do you trigger a block after a delay, like -performSelector:withObject:afterDelay:?

...ion of my block for 10 seconds. dispatch_after(dispatch_time(DISPATCH_TIME_NOW, 10 * NSEC_PER_SEC), dispatch_get_main_queue(), ^{ NSLog(@"parameter1: %d parameter2: %f", parameter1, parameter2); }); More: https://developer.apple.com/documentation/dispatch/1452876-dispatch_after ...
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Why does this go into an infinite loop?

...at I personally haven't done all that much Java development; so for all I know there could be much more idiomatic ways to illustrate this point. Perhaps if we write out a method to do the equivalent of what x++ does it will make this clearer. public MutableInt postIncrement(MutableInt x) { i...
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How can I rename a project folder from within Visual Studio?

...ove the project from the solution, by right clicking and selecting Remove. Now, in Windows Explorer, rename the project folder. Go back to Visual Studio, and in Solution Explorer, right click the solution and choose Add -> Existing project. Select the project file for the project you removed in s...
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How can I add or update a query string parameter?

... Update (2020): URLSearchParams is now supported by all modern browsers. The URLSearchParams utility can be useful for this in combination with window.location.search. For example: if ('URLSearchParams' in window) { var searchParams = new URLSearchParams(w...
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How to determine day of week by passing specific date?

...all dateTime.dayOfWeek() and/or DateTimeFormat. edit: since Java 8 you can now use java.time package instead of joda-time share | improve this answer | follow ...
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How do I install Python OpenCV through Conda?

... I have summarized my now fully working solution, OpenCV-Python - How to install OpenCV-Python package to Anaconda (Windows). Nevertheless I've copied and pasted the important bits to this post. At the time of writing I was using Windows 8.1, 6...
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List passed by ref - help me explain this behaviour

...asses a reference to the local-variable myRef (as declared in TestMethod); now, if you reassign the parameter inside ChangeList you are also reassigning the variable inside TestMethod. share | impro...