大约有 47,000 项符合查询结果（耗时：0.0430秒） [XML]
How to check a radio button with jQuery?
...
For versions of jQuery equal or above (>=) 1.6, use:
$("#radio_1").prop("checked", true);
For versions prior to (<) 1.6, use:
$("#radio_1").attr('checked', 'checked');
Tip: You may also want to call click() or cha...
Preferred method to store PHP arrays (json_encode vs serialize)
...need to store a multi-dimensional associative array of data in a flat file for caching purposes. I might occasionally come across the need to convert it to JSON for use in my web app but the vast majority of the time I will be using the array directly in PHP.
...
How to make the python interpreter correctly handle non-ASCII characters in string operations?
...
Python 2 uses ascii as the default encoding for source files, which means you must specify another encoding at the top of the file to use non-ascii unicode characters in literals. Python 3 uses utf-8 as the default encoding for source files, so this is less of an issue...
Why does modern Perl avoid UTF-8 by default?
...at you are running perl version 5.12 or better via:
use v5.12; # minimal for unicode string feature
use v5.14; # optimal for unicode string feature
Enable warnings, since the previous declaration only enables strictures and features, not warnings. I also suggest promoting Unicode warnings into e...
Check image width and height before upload with Javascript
I have a JPS with a form in which a user can put an image:
8 Answers
8
...
Looking to understand the iOS UIViewController lifecycle
...
ViewDidLoad - Called when you create the class and load from xib. Great for initial setup and one-time-only work.
ViewWillAppear - Called right before your view appears, good for hiding/showing fields or any operations that you want to happen every time before the view is visible. Because you mig...
Find running median from a stream of integers
...
There are a number of different solutions for finding running median from streamed data, I will briefly talk about them at the very end of the answer.
The question is about the details of the a specific solution (max heap/min heap solution), and how heap based solu...
How to enumerate an object's properties in Python?
...
for property, value in vars(theObject).items():
print(property, ":", value)
Be aware that in some rare cases there's a __slots__ property, such classes often have no __dict__.
...
Unable to install Maven on Windows: “JAVA_HOME is set to an invalid directory”
... path.
Make sure that the JAVA_HOME variable refers to the home directory for your Java installation. If you are executing Java from "E:\Sun\SDK\jdk\bin", then the JAVA_HOME variable needs to point to "E:\Sun\SDK\jdk".
NB: JAVA_HOME should NOT end with "\bin"1.
Make sure that you haven't put a se...
Create subdomains on the fly with .htaccess (PHP)
...g to create a system which on signup will create a subdomain on my website for the users account area.
9 Answers
...