大约有 48,000 项符合查询结果（耗时：0.0680秒） [XML]
Filter by property
...) if x.myProperty == [...]]
MyModel.objects.filter(id__in=objects_id)
I know it's not the most performatic solution, but may help in simple cases as mine
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Access restriction: The type 'Application' is not API (restriction on required library rt.jar)
...ually right about what is and what isn't part of the public API.
Problem
Now, there can be situations, where you want to use public Non-API, like sun.misc (you shouldn't, unless you know what you're doing). And there can be situations, where Eclipse is not really right (that's what happened to me,...
Catch all JavaScript errors and send them to server
...ors and events in the cloud
from http://jslogger.com/features :
From now on you can spy on all the errors that break your site's user experience. Every Javascript error will be caught and brought to you for later debuging.
DISCLAIMER: not affiliated with the service/company.
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android edittext onchange listener
I know a little bit about TextWatcher but that fires on every character you enter. I want a listener that fires whenever the user finishes editing. Is it possible? Also in TextWatcher I get an instance of Editable but I need an instance of EditText . How do I get that?
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Android emulator failed to allocate memory 8
... Seriously, what a stupid bug... /facepalm At least I can progress now! Thank you!
– mrswadge
Nov 9 '13 at 20:01
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Example: Communication between Activity and Service using Messaging
...adcast in onResume. Remember that you must unregister broadcast in onStop. Now, i'm don't recommend use my method. Please use special libs for communicate with other views/activities/services such as EventBus github.com/greenrobot/EventBus or Otto github.com/square/otto
– a.bla...
How to get a list of repositories apt-get is checking? [closed]
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Downvoted (for now) with comment: Please show us how to capture this output and convert it to the answer to the question, i.e. each time we do apt update, how do we filter that output/text to extract the information relevant to this ques...
Convert float to double without losing precision
...point (for example, 0.1). So you either must always round the result to a known precision or use BigDecimal.
See http://en.wikipedia.org/wiki/Floating_point for more information.
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How to scroll to top of page with JavaScript/jQuery?
...to top of the page with a scroll effect is a bit more easier in javascript now with:
https://developer.mozilla.org/en-US/docs/Web/API/Window/scroll
There are 2 ways to use scroll API.
This is the method I recommend. Using an option object:
window.scroll(options)
This is a better option since you can...
Removing an element from an Array (Java) [duplicate]
...y bad programming.
Suppose you had an array taking up, say, 100mb of ram. Now you want to iterate over it and delete 20 elements.
Give it a try...
I know you ASSUME that it's not going to be that big, or that if you were deleting that many at once you'd code it differently, but I've fixed an a...