大约有 47,000 项符合查询结果(耗时:0.0561秒) [XML]

https://stackoverflow.com/ques... 

URL-parameters and logic in Django class-based views (TemplateView)

...or higher, as pointed out here: Django’s generic class based views now automatically include a view variable in the context. This variable points at your view object. In your views.py: from django.views.generic.base import TemplateView class Yearly(TemplateView): template_name ...
https://stackoverflow.com/ques... 

Git error on git pull (unable to update local ref)

...te local ref, when doing a pull in SourceTree. We used : git gc --prune=now This removes any duplicate reference objects which should fix the issue. Here are a few links where you can learn more about git references and pruning : git tip of the week git-prune documentation git references ...
https://stackoverflow.com/ques... 

How do I preview emails in Rails?

... Action Mailer now has a built in way of previewing emails in Rails 4.1. For example, check this out: # located in test/mailers/previews/notifier_mailer_preview.rb class NotifierPreview < ActionMailer::Preview # Accessible from http:...
https://stackoverflow.com/ques... 

How do I get currency exchange rates via an API such as Google Finance? [closed]

Now, I did find the Google Finance API and started looking through that but I found a lot of info about portfolios, transactions, positions & other stuff I know nothing about. ...
https://stackoverflow.com/ques... 

Check string for palindrome

... will compare word[0] and word[4]. They're equal, so we increment i1 (it's now 1) and decrement i2 (it's now 3). So we then compare the n's. They're equal, so we increment i1 (it's now 2) and decrement i2 (it's 2). Now i1 and i2 are equal (they're both 2), so the condition for the while loop is no l...
https://stackoverflow.com/ques... 

Understanding reference counting with Cocoa and Objective-C

...e count is decremented. If, after calling release, the reference count is now zero, then that object's memory is freed by the system. The basic way this differs from malloc and free is that any given object doesn't need to worry about other parts of the system crashing because you've freed memory ...
https://stackoverflow.com/ques... 

Why are there two kinds of functions in Elixir?

...lt; 0 -> x - y y -> x + y end fun.(2) #=> 3 fun.(-2) #=> 3 Now, let's try something different. Let's try to define different clauses expecting a different number of arguments: fn x, y -> x + y x -> x end ** (SyntaxError) cannot mix clauses with different arities in functio...
https://stackoverflow.com/ques... 

What is the best way to filter a Java Collection?

...ill cannot believe I am collecting SO points for this answer. At any rate, now that Java 8 has introduced closures to the language, my answer would now be considerably different, and simpler. With Java 8, there is no need for a distinct static utility class. So if you want to find the 1st element th...
https://stackoverflow.com/ques... 

Rebasing a Git merge commit

...bout what contents will be in that merge commit, we only need nice history now. History will looks like that (ignoring master): * 51984c7 Merge branch 'topic' [HEAD -> correct-history] |\ | * b62cae6 2 [topic] * | f5a7ca8 5 [origin/master] * | e7affb...
https://stackoverflow.com/ques... 

iPhone Simulator suddenly started running very slow

...hone simulator for a number of weeks and it has been running well up until now, but all of a sudden has begun running very slow both when loading content and animations. I have not made any changes to my code since I last tested it successfully. ...