大约有 45,000 项符合查询结果(耗时:0.1030秒) [XML]
Iterating Over Dictionary Key Values Corresponding to List in Python
...
You have several options for iterating over a dictionary.
If you iterate over the dictionary itself (for team in league), you will be iterating over the keys of the dictionary. When looping with a for loop, the behavior will be the same whether you loop over the dict (league) itsel...
What is Scala's yield?
...
or
from a in args select a.toUpperCase
in Linq.
Ruby's yield has a different effect.
share
|
improve this answer
|
follow
|
...
How do I get around type erasure on Scala? Or, why can't I get the type parameter of my collections?
It's a sad fact of life on Scala that if you instantiate a List[Int], you can verify that your instance is a List, and you can verify that any individual element of it is an Int, but not that it is a List[Int], as can be easily verified:
...
Django class-based view: How do I pass additional parameters to the as_view method?
...
This method is now deprecated, now you can use url('<slug:slug>', MyView.as_view(), name='my_named_view')
– Rahat Zaman
Mar 7 '19 at 1:56
...
How to manually expand a special variable (ex: ~ tilde) in bash
...ion
Original answer for historic purposes (but please don't use this)
If I'm not mistaken, "~" will not be expanded by a bash script in that manner because it is treated as a literal string "~". You can force expansion via eval like this.
#!/bin/bash
homedir=~
eval homedir=$homedir
echo $home...
Using sections in Editor/Display templates
...ey in htmlHelper.ViewContext.HttpContext.Items.Keys)
{
if (key.ToString().StartsWith("_script_"))
{
var template = htmlHelper.ViewContext.HttpContext.Items[key] as Func<object, HelperResult>;
if (template != null)
...
Build the full path filename in Python
... + filename_suffix)
Keep in mind that os.path.join() exists only because different operating systems use different path separator characters. It smooths over that difference so cross-platform code doesn't have to be cluttered with special cases for each OS. There is no need to do this for file name...
jQuery - replace all instances of a character in a string [duplicate]
...
You need to use a regular expression, so that you can specify the global (g) flag:
var s = 'some+multi+word+string'.replace(/\+/g, ' ');
(I removed the $() around the string, as replace is not a jQuery method, so that won't work at all.)
...
VIM Ctrl-V Conflict with Windows Paste
...
For some reason I needed to use the Shift key for visual selection on Windows, while I do not on Linux.
– stevesliva
Jan 11 '16 at 18:48
1
...
Is it possible to use a div as content for Twitter's Popover
I am using twitter's bootstrap's popover here . Right now, when i scroll over the popover text a popover appears with just text from the <a> 's data-content attribute. I was wondering if there was anyway to put a <div> inside the popover. Potentially, I would like to use php and...