大约有 31,840 项符合查询结果（耗时：0.0397秒） [XML]
bash: mkvirtualenv: command not found
...hout sourcing virtualenvwrapper_bashrc
Solution 2:
Alternatively as mentioned below, you could leverage the chance that virtualenvwrapper.sh is already in your shell's PATH and just issue a source `which virtualenvwrapper.sh`
...
jQuery .data() does not work, but .attr() does
...fiddle.
To avoid this problem don't intermix .data and .attr() calls. Use one or the other.
share
|
improve this answer
|
follow
|
...
Why does the JVM still not support tail-call optimization?
...pecification doesn't require that this transformation be made. Presumably, one reason it is not a requirement is that, in general, the transformation can't be made statically in an object-oriented language. Instead, the transformation from tail-recursive function to simple loop must be done dynamica...
Python nested functions variable scoping [duplicate]
...
Rather than declaring a special object or map or array,
one can also use a function attribute.
This makes the scoping of the variable really clear.
def sumsquares(x,y):
def addsquare(n):
sumsquares.total += n*n
sumsquares.total = 0
addsquare(x)
addsquare(y)
return ...
Processing $http response in service
...le, needless requests to the JSON service, when really I only need to make one.
– GFoley83
May 16 '13 at 22:05
5
...
How do I maintain the Immersive Mode in Dialogs?
... updated my answer after some investigation into the issue, it was a tough one! Tested on a Nexus 5 emulator, hopefully this one works.
– Beaver6813
Apr 22 '14 at 22:10
2
...
String formatting: % vs. .format vs. string literal
...
The point is: The one recurring argument that the new syntax allows reordering of items is a moot point: You can do the same with the old syntax. Most people do not know that this is actually already defined in the Ansi C99 Std! Check out a re...
Completion handler for UINavigationController “pushViewController:animated”?
...gationController?.pushViewController(vc, animated: true) {
// Animation done
}
Objective-C
Header:
#import <UIKit/UIKit.h>
@interface UINavigationController (CompletionHandler)
- (void)completionhandler_pushViewController:(UIViewController *)viewController
...
How to reorder data.table columns (without copying)
... is made at all, other than temporary working memory, which is as large as one column.
so should be pretty efficient. See ?setcolorder for details.
share
|
improve this answer
|
...
What is the difference between a URI, a URL and a URN?
...this case it also happens to identify at least 5 other people in the USA alone.
4914 West Bay Street, Nassau, Bahamas
This is a locator, which is an identifier for that physical location.
It is like both a URL and URI (since all URLs are URIs), and also identifies me indirectly as "resident of.."....