大约有 40,000 项符合查询结果（耗时：0.0728秒） [XML]
what is faster: in_array or isset? [closed]
... value until it finds a match.
Being an opcode, it has less overhead than calling the in_array built-in function.
These can be demonstrated by using an array with values (10,000 in the test below), forcing in_array to do more searching.
isset: 0.009623
in_array: 1.738441
This builds on Jason...
Why am I not getting a java.util.ConcurrentModificationException in this example?
... iterator and listIterator
methods are fail-fast: if the list is structurally modified at any
time after the iterator is created, in any way except through the
iterator's own remove or add methods, the iterator will throw a
ConcurrentModificationException.
This check is done in the next() ...
Generic List - moving an item within the list
...ant.
public void Move(int oldIndex, int newIndex)
Underneath it is basically implemented like this.
T item = base[oldIndex];
base.RemoveItem(oldIndex);
base.InsertItem(newIndex, item);
So as you can see the swap method that others have suggested is essentially what the ObservableCollection doe...
How can I remove the string “\n” from within a Ruby string?
... your gsub. The different quote marks behave differently.
Double quotes " allow character expansion and expression interpolation ie. they let you use escaped control chars like \n to represent their true value, in this case, newline, and allow the use of #{expression} so you can weave variables and...
C++ convert vector to vector
...lt;int> intVec to std::vector<double> doubleVec . Or, more generally, to convert two vectors of convertible types?
...
How can I use Server.MapPath() from global.asax?
...flector, you'll notice that Server.MapPath and Request.MapPath ultimately call VirtualPath.MapPath which ultimately calls HostingEnvironment.MapPath. They all end up in the same place. HostingEnvironment.MapPath cuts out the middle man.
– Corbin March
Jun 3 '09...
Efficient list of unique strings C#
... You don't need the Contains check with a HashSet. You can just call the Add method directly and it will return true or false depending on whether or not the item already exists.
– LukeH
May 28 '09 at 9:01
...
How can I wrap or break long text/word in a fixed width span?
...
DEMO
li span{
display:block;
width:50px;
word-break:break-all;
}
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Java Timestamp - How can I create a Timestamp with the date 23/09/2007?
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Actually the Timestamp constructor is depricated rather you could use Timestamp.valueOf() method
– Shiva Komuravelly
Dec 27 '12 at 10:04
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Cocoapods staying on “analyzing dependencies”
I'm using cocoapods to manage my dependencies. All have been working fine. Now, When I'm creating a new project, added the following to my podfile,
...