大约有 47,000 项符合查询结果（耗时：0.0669秒） [XML]
Swift: declare an empty dictionary
...ict = [:] // ok, I'm done with it
In the last example the dictionary is known to have a type Dictionary<String, String> by the first line. Note that you didn't have to specify it explicitly, but it has been inferred.
...
Why Maven uses JDK 1.6 but my java -version is 1.7
...n -s /Library/Java/JavaVirtualMachines/jdk1.8.0.jdk/Contents/ CurrentJDK
Now it shall work immediately.
share
|
improve this answer
|
follow
|
...
jQuery object equality
...
If you still don't know, you can get back the original object by:
alert($("#deviceTypeRoot")[0] == $("#deviceTypeRoot")[0]); //True
alert($("#deviceTypeRoot")[0] === $("#deviceTypeRoot")[0]);//True
because $("#deviceTypeRoot") also returns an...
Get second child using jQuery
...thought to the performance of the code. Therefore, it is also relavant to know what exactly is in the $(t) variable. Is it an array of <TD> or is it a <TR> node with several <TD>s inside it?
To further illustrate the point, see the jsPerf scores on a <ul> list with 50 <li&...
How to delete a file from SD card?
I am creating a file to send as an attachment to an email. Now I want to delete the image after sending the email. Is there a way to delete the file?
...
Eclipse doesn't highlight references anymore
...e use of that variables in that method. However through some action I have now disabled it. Is there a way I can enable it?
...
css ellipsis on second line
...ext-overflow: ellipsis; to work is a one-line version of white-space (pre, nowrap etc). Which means the text will never reach the second line.
Ergo. Not possible in pure CSS.
My source when I was looking for the exact same thing just now: http://www.quirksmode.org/css/textoverflow.html (Quirksmode...
Writing a Python list of lists to a csv file
...pd = pandas.DataFrame(not_index_list, columns = columns, index = index)
#Now you have a csv with columns and index:
pd.to_csv("mylist.csv")
share
|
improve this answer
|
...
In Django, how do I check if a user is in a certain group?
...ming, there is one initial user
user.groups.add(group) # user is now in the "Editor" group
then user.groups.all() returns [<Group: Editor>].
Alternatively, and more directly, you can check if a a user is in a group by:
if django_user.groups.filter(name = groupname).exists():
...
scale Image in an UIButton to AspectFit?
...
This can now be done through IB's UIButton properties. The key is to set your image as a the background, otherwise it won't work.
share
|
...