大约有 20,000 项符合查询结果(耗时:0.0462秒) [XML]
Why there is no ForEach extension method on IEnumerable?
...
There is already a foreach statement included in the language that does the job most of the time.
I'd hate to see the following:
list.ForEach( item =>
{
item.DoSomething();
} );
Instead of:
foreach(Item item in list)
{
it...
Git on Windows: How do you set up a mergetool?
...L\" \"$REMOTE\" \"$MERGED\""
The changes (relative to Charles Bailey):
added to global git config, i.e. valid for all git projects not just the current one
the custom tool config value resides in "mergetool.[tool].cmd", not "merge.[tool].cmd" (silly me, spent an hour troubleshooting why git kept...
C# Sortable collection which allows duplicate keys
... will appear in report.
The sequence is the Y position (cell) on Excel spreadsheet.
16 Answers
...
Why is it considered a bad practice to omit curly braces? [closed]
Why does everyone tell me writing code like this is a bad practice?
52 Answers
52
...
Covariance and contravariance real world example
...ic class Teacher : Person { }
public class MailingList
{
public void Add(IEnumerable<out Person> people) { ... }
}
public class School
{
public IEnumerable<Teacher> GetTeachers() { ... }
}
public class PersonNameComparer : IComparer<Person>
{
public int Compare(Pers...
Why is UICollectionViewCell's outlet nil?
...
JánosJános
26.2k2222 gold badges123123 silver badges251251 bronze badges
...
How does Java handle integer underflows and overflows and how would you check for it?
...ere.
You can check that beforehand as follows:
public static boolean willAdditionOverflow(int left, int right) {
if (right < 0 && right != Integer.MIN_VALUE) {
return willSubtractionOverflow(left, -right);
} else {
return (~(left ^ right) & (left ^ (left + ri...
INNER JOIN ON vs WHERE clause
...IN is ANSI syntax which you should use.
It is generally considered more readable, especially when you join lots of tables.
It can also be easily replaced with an OUTER JOIN whenever a need arises.
The WHERE syntax is more relational model oriented.
A result of two tables JOINed is a cartesian pr...
Fragment onCreateView and onActivityCreated called twice
...
I was scratching my head about this for a while too, and since Dave's explanation is a little hard to understand I'll post my (apparently working) code:
private class TabListener<T extends Fragment> implements ActionBar.TabListener {
pr...
How to resolve git stash conflict without commit?
..., I also want to know how to resolve a conflicting git stash pop without adding all modifications to a commit (just like "git stash pop" without a conflict does).
...