大约有 44,937 项符合查询结果（耗时：0.0406秒） [XML]
OAuth 2.0: Benefits and use cases — why?
Could anyone explain what's good about OAuth2 and why we should implement it? I ask because I'm a bit confused about it — here's my current thoughts:
...
Is it unnecessary to put super() in constructor?
Isn't this one automatically put by the compiler if I don't put it in a subclass's constructor?
6 Answers
...
Looking to understand the iOS UIViewController lifecycle
...e appropriate times by iOS when you load/present/hide the view controller. It's important to note that these methods are attached to UIViewController and not to UIViews themselves. You won't get any of these features just using a UIView.
There's great documentation on Apple's site here. Putting in ...
Convert python datetime to epoch with strftime
... you want to convert a python datetime to seconds since epoch you could do it explicitly:
>>> (datetime.datetime(2012,04,01,0,0) - datetime.datetime(1970,1,1)).total_seconds()
1333238400.0
In Python 3.3+ you can use timestamp() instead:
>>> datetime.datetime(2012,4,1,0,0).times...
Read String line by line
Given a string that isn't too long, what is the best way to read it line by line?
11 Answers
...
Cache busting via params
...doing so. My thought was to apply a param to the end of css and js files with the current version number:
12 Answers
...
Difference between object and class in Scala
...object O creates a singleton object O as instance of some anonymous class; it can be used to hold static members that are not associated with instances of some class.
object O extends T makes the object O an instance of trait T; you can then pass O anywhere, a T is expected.
if there is a class C, t...
How do I vertically center text with CSS? [duplicate]
...: 2px dashed #f69c55;
}
<div>
Hello World!
</div>
It only works for a single line of text though, because we set the line's height to the same height as the containing box element.
A more versatile approach
This is another way to align text vertically. This solution will...
Check if element exists in jQuery [duplicate]
... me.
You need to put # before element id:
$('#elemId').length
---^
With vanilla JavaScript, you don't need the hash (#) e.g. document.getElementById('id_here') , however when using jQuery, you do need to put hash to target elements based on id just like CSS.
...
Django 1.7 throws django.core.exceptions.AppRegistryNotReady: Models aren't loaded yet
...
This is what solved it for us and these folks:
Our project started with Django 1.4, we went to 1.5 and then to 1.7. Our wsgi.py looked like this:
import os
from django.core.handlers.wsgi import WSGIHandler
os.environ['DJANGO_SETTINGS_MODULE'...