大约有 40,000 项符合查询结果（耗时：0.0462秒） [XML]
Change the URL in the browser without loading the new page using JavaScript
...
Yes you can use the html5 history api but it's not cross-browser, though you can use a poly-fill that will fallback to hash urls.
– Jethro Larson
Mar 27 '12 at 23:07
...
What is the purpose of Flask's context stacks?
...backend". In other words, the Flask(...) application constructor has been called twice, creating two instances of a Flask application.
Contexts
When you are working with Flask, you often end up using global variables to access various functionality. For example, you probably have code that reads.....
string sanitizer for filename
...a whitelist of characters you are happy to be used? For example, you could allow just good ol' a-z, 0-9, _, and a single instance of a period (.). That's obviously more limiting than most filesystems, but should keep you safe.
...
jQuery “Does not have attribute” selector?
...ntainer:not([data-timestamp])')
This, by the way, is a valid Selectors API selector, so it isn't specific to jQuery. It'll work with querySelectorAll() and in your CSS (given browser support).
share
|
...
What is the fastest way to get the value of π?
I'm looking for the fastest way to obtain the value of π, as a personal challenge. More specifically, I'm using ways that don't involve using #define constants like M_PI , or hard-coding the number in.
...
Save classifier to disk in scikit-learn
... Works like a charm! I was trying to use np.savez and load it back all along and that never helped. Thanks a lot.
– Kartos
Jan 29 '14 at 9:29
10
...
How to make rpm auto install dependencies
...hip and filesystem permissions:
# chown -R root.root /home/user/repo
Install the createrepo package if not installed yet, and run
# createrepo /home/user/repo
# chmod -R o-w+r /home/user/repo
Create a repository configuration file, e.g. /etc/yum.repos.d/myrepo.repo containing
[local]
name=My Aw...
Concatenating null strings in Java [duplicate]
...can do so yourself by using javap -c)
The append methods of StringBuilder all handle null just fine. In this case because null is the first argument, String.valueOf() is invoked instead since StringBuilder does not have a constructor that takes any arbitrary reference type.
If you were to have ...
What is in your Mathematica tool bag? [closed]
We all know that Mathematica is great, but it also often lacks critical functionality. What kind of external packages / tools / resources do you use with Mathematica?
...
correct way to use super (argument passing)
...
Shouldn't Base call super(Base, self).__init__()?
– cha0site
Jan 23 '12 at 14:47
4
...