大约有 47,000 项符合查询结果(耗时:0.0466秒) [XML]

https://stackoverflow.com/ques... 

Why does installing Nokogiri on Mac OS fail with libiconv is missing?

I've been trying to install Nokogiri on Mac OS 10.9.3 and whatever I try, the install fails in the end with the following error message: ...
https://stackoverflow.com/ques... 

GoogleTest: How to skip a test?

...o). I then removed my comment, figuring it's obsolete... but that's some really good info! +1 – Kiril Aug 26 '11 at 17:05 ...
https://stackoverflow.com/ques... 

Why would a JavaScript variable start with a dollar sign? [duplicate]

...wish the jquery documentation used this notation as well... It is indeed really helpful. – pedromanoel Jan 28 '14 at 11:05 10 ...
https://stackoverflow.com/ques... 

android studio 0.4.2: Gradle project sync failed error

...e folder in the user home directory Restart Android Studio let it download all the Gradle stuff it needs Gradle build success ! Rebuild project.... success ! Out of curiousity I compared the structure of the old .gradle and the new one... they were pretty different ! So I'll see how 0.4.2 goes :...
https://stackoverflow.com/ques... 

What is the difference between ndarray and array in numpy?

...r are used. If buffer is an object exposing the buffer interface, then all keywords are interpreted. The example below gives a random array because we didn't assign buffer value: np.ndarray(shape=(2,2), dtype=float, order='F', buffer=None) array([[ -1.13698227e+002, 4.25087011e-303], ...
https://stackoverflow.com/ques... 

Geometric Mean: is there a built-in?

...pplication I had in mind they are the same, but of course this is not generally true. Thus, if you want to include optional propagation of zeros, and treat the length(x) differently in the case of NA removal, the following is a slightly longer alternative to the function above. gm_mean = function(x...
https://stackoverflow.com/ques... 

Where do I set my company name?

...lt, Xcode inserts a company name something similar to the following in all new source files (.m .h etc): Copyright (c) 2009 MyCompanyName. All rights reserved. Changing this reference is as simple as entering the following from within a terminal window, replacing “YourNameH...
https://stackoverflow.com/ques... 

Which is more efficient, a for-each loop, or an iterator?

... If you are just wandering over the collection to read all of the values, then there is no difference between using an iterator or the new for loop syntax, as the new syntax just uses the iterator underwater. If however, you mean by loop the old "c-style" loop: for(int i=0; i&l...
https://stackoverflow.com/ques... 

Which characters make a URL invalid?

... @techiferous, Yeah, I forgot to allow "%" escaped characters. It should've looked more like: /^([!#$&-;=?-[]_a-z~]|%[0-9a-fA-F]{2})+$/ Was there anything else that you found it should've been accepting? (Just to be clear, that regex only checks ...
https://stackoverflow.com/ques... 

When to use EntityManager.find() vs EntityManager.getReference() with JPA

... I usually use getReference method when i do not need to access database state (I mean getter method). Just to change state (I mean setter method). As you should know, getReference returns a proxy object which uses a powerful featu...