大约有 42,000 项符合查询结果（耗时：0.0325秒） [XML]
Python initializing a list of lists [duplicate]
....append([]) # appending a new list!
In [20]: x = [[]] * 4
In [21]: [id(i) for i in x]
Out[21]: [164363948, 164363948, 164363948, 164363948] # same id()'s for each list,i.e same object
In [22]: x=[[] for i in range(4)]
In [23]: [id(i) for i in x]
Out[23]: [164382060, 164364140, 164363628, 1...
Call two functions from same onclick [duplicate]
... the end of the function calls in order for them both to work.
<input id="btn" type="button" value="click" onclick="pay(); cls();"/>
I don't believe the last one is required but hey, might as well add it in for good measure.
Here is a good reference from SitePoint http://reference.sitepoi...
Laravel 4: how to “order by” using Eloquent ORM [duplicate]
Simple question - how do I order by 'id' descending in Laravel 4.
3 Answers
3
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How to load external webpage inside WebView
My problem is that the webpage is not loaded inside the webview.
13 Answers
13
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How to rename items in values() in Django?
... -1 because .values(supports__through_tables) and this hack doesn't (incidentally probably the most obvious use case for wanting to rename the ValuesQuerySet dict keys)
– wim
Aug 21 '14 at 13:12
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Getting the name of a child class in the parent class (static context)
... simplicity in mind; everything goes fine except that I got stuck by a stupid inheritance limitation. Please consider the code below:
...
Difference between Node object and Element object?
...lly confused between Node object and Element object.
document.getElementById() returns Element object while document.getElementsByClassName()
returns NodeList object(Collection of Elements or Nodes?)
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OAuth secrets in mobile apps
...r provision and disabling apps. If our secret is compromised, then the provider can only really revoke the entire app. Since we have to embed our secret in the desktop app, we are sorta screwed.
The solution is to have a different secret for each desktop app. OAuth doesn't make this concept easy. ...
Does a UNIQUE constraint automatically create an INDEX on the field(s)?
...e keys are in fact B-tree type indexes.
A composite index on (email, user_id) is enough, you don't need a separate index on email only - MySQL can use leftmost parts of a composite index. There may be some border cases where the size of an index can slow down your queries, but you should not worry ...
How do you write a migration to rename an ActiveRecord model and its table in Rails?
... @mathee: yes, you have to change that manually, or using an IDE that can do Ruby refactoring and commit it to your version control system.
– pupeno
Apr 30 '10 at 9:00
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