大约有 48,000 项符合查询结果(耗时:0.0726秒) [XML]

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Why does 'continue' behave like 'break' in a Foreach-Object?

...each that helps to make this conversion easy and make mistakes easy, too). All continues should be replaced with return. P.S.: Unfortunately, it is not that easy to simulate break in ForEach-Object. share | ...
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mongo group query how to keep fields

...are accumulated/funneled/reduced) doesn't make so much sense even theoretically. However, sorting before hand is actually inefficient compared to sorting each group within themselves since sorting algorithms are more complex than O(n). I wish there would be better ways in MongoDB. ...
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I want to get the type of a variable at runtime

...that comparison return true, but it would require a few book chapters to really cover TypeTag, so I'll stop here. Finally, maybe you don't care about the type of the variable at all. Maybe you just want to know what is the class of a value, in which case the answer is rather simple: val x = 5 x.ge...
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How do I install an R package from source?

...nt me along this great tutorial on webscraping NYtimes with R . I would really love to try it. However, the first step is to installed a package called RJSONIO from source. ...
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No Swipe Back when hiding Navigation Bar in UINavigationController

... navigationController?.navigationBar.hidden = true does work, but does not allow your change in navigation bar to be hidden. Lastly, it's generally better practice to create a model object that is the UIGestureRecognizerDelegate for your navigation controller. Setting it to a controller in the UINa...
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PowerShell Script to Find and Replace for all Files with a Specific Extension

... I would like to add that testing the solutions provided out all worked, but this one was the easiest for readability. I was able to hand this to a co-worker and he could easily understand what was going on. Thanks for the assistance. – Brandon Ma...
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Simplest/Cleanest way to implement singleton in JavaScript?

... return { // public interface publicMethod1: function () { // all private members are accessible here }, publicMethod2: function () { } }; })(); This has been called the module pattern, it basically allows you to encapsulate private members on an object, by taking advant...
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Convert nested Python dict to object?

...; s.a 1 >>> s.b {'c': 2} >>> s.c Traceback (most recent call last): File "<stdin>", line 1, in <module> AttributeError: 'MyStruct' object has no attribute 'c' >>> s.d ['hi'] The alternative (original answer contents) is: class Struct: def __init__(self...
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Django set default form values

...ch is explained here You have two options either populate the value when calling form constructor: form = JournalForm(initial={'tank': 123}) or set the value in the form definition: tank = forms.IntegerField(widget=forms.HiddenInput(), initial=123) ...
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Where to find Java JDK Source Code? [closed]

...ethod in the Java API does. So I want the JDK Source Code. Before I re-installed Linux I had the src.zip package with all the official source code in it. I just had to tell Eclipse where this file is and I could see the code. But now I don't have the file anymore... ...