大约有 44,682 项符合查询结果（耗时：0.0431秒） [XML]
Getting an element from a Set
...
There would be no point of getting the element if it is equal. A Map is better suited for this usecase.
If you still want to find the element you have no other option but to use the iterator:
public static void main(String[] args) {
Set<Foo> set = new HashSet&...
Preserve line breaks in angularjs
...
Based on @pilau s answer - but with an improvement that even the accepted answer does not have.
<div class="angular-with-newlines" ng-repeat="item in items">
{{item.description}}
</div>
/* in the css file or in a style block */
.angular-wit...
SFTP in Python? (platform independent)
...'m working on a simple tool that transfers files to a hard-coded location with the password also hard-coded. I'm a python novice, but thanks to ftplib, it was easy:
...
Adjust width of input field to its input
This is my code and it is not working. Is there any other way in HTML, JavaScript, PHP or CSS to set minimum width?
26 Answ...
Java Generics: Cannot cast List to List? [duplicate]
Just come across with this problem:
10 Answers
10
...
MySQL - SELECT WHERE field IN (subquery) - Extremely slow why?
...
Rewrite the query into this
SELECT st1.*, st2.relevant_field FROM sometable st1
INNER JOIN sometable st2 ON (st1.relevant_field = st2.relevant_field)
GROUP BY st1.id /* list a unique sometable field here*/
HAVING COUNT(*) > ...
What does (x ^ 0x1) != 0 mean?
...
The XOR operation (x ^ 0x1) inverts bit 0. So the expression effectively means: if bit 0 of x is 0, or any other bit of x is 1, then the expression is true.
Conversely the expression is false if x == 1.
So the test is the same as:
if (x != 1)
and is therefo...
Non greedy (reluctant) regex matching in sed?
...
Neither basic nor extended Posix/GNU regex recognizes the non-greedy quantifier; you need a later regex. Fortunately, Perl regex for this context is pretty easy to get:
perl -pe 's|(http://.*?/).*|\1|'
...
How is a tag different from a branch in Git? Which should I use, here?
...ing some difficulty understanding how to use tags versus branches in git .
12 Answers
...
How can you do anything useful without mutable state?
...of stuff about functional programming lately, and I can understand most of it, but the one thing I just can't wrap my head around is stateless coding. It seems to me that simplifying programming by removing mutable state is like "simplifying" a car by removing the dashboard: the finished product ma...