大约有 40,000 项符合查询结果(耗时:0.0494秒) [XML]

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Disable messages upon loading a package

...y R script is being used for further analysis I want to completely disable all of this output. How do I do that? Furthermore, I'd prefer to do it without having to modify ROCR at all, so that future users of this script don't have to do that either. ...
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Performing Breadth First Search recursively

...tion, but I suppose I could imagine some bizarre scenario where you're not allowed any heap space for some reason [some really bad custom memory manager? some bizarre runtime/OS issues?] while you still have access to the stack...) Breadth-first traversal traditionally uses a queue, not a stack. T...
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Proper use cases for Android UserManager.isUserAGoat()?

...changed in API 21. /** * Used to determine whether the user making this call is subject to * teleportations. * @return whether the user making this call is a goat */ public boolean isUserAGoat() { return false; } It looks like the method has no real use for us as developers. Someone has ...
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typeof !== “undefined” vs. != null

...gument, or as a global variable), I think the best way to do it is: if (my_variable === undefined) jQuery does it, so it's good enough for me :-) Otherwise, you'll have to use typeof to avoid a ReferenceError. If you expect undefined to be redefined, you could wrap your code like this: (functi...
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Selenium c# Webdriver: Wait Until Element is Present

...at can cause some unpredictable behavior leading to bad test results. Generally speaking, I would recommend using explicit waits over implicit waits. – mrfreester Dec 22 '16 at 19:26 ...
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How do I find and view a TFS changeset by comment text?

... With the Power Tools installed: tf history $/ -r | ? { $_.comment -like '*findme*' } share | improve this answer | follow ...
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iOS Detect 3G or WiFi

... Shouldn't you call [reachability stopNotifier] after you have the status? – zekel Nov 9 '11 at 18:41 3 ...
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What would be C++ limitations compared C language? [closed]

...uestion which asks about a generics library for C - the questioner specifically states that they do not want to use C++. C is a complete programming language. C is not an arbitrary subset of C++. C is not a subset of C++ at all. This is valid C: foo_t* foo = malloc ( sizeof(foo_t) ); To make ...
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Is it acceptable and safe to run pip install under sudo?

...ns together will get me back on track :) – markwalker_ Feb 22 '13 at 16:40 1 also, for installing...
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Jackson enum Serializing and DeSerializer

... I really dislike this solution for the simple fact that you introduce two sources of truth. The developer will always have to remember to add the name in two places. I much prefer a solution that just does the right thing without...