大约有 44,000 项符合查询结果(耗时:0.0666秒) [XML]
foreach vs someList.ForEach(){}
...vior. For this experiment, I am using .NET 4.7.2:
var names = new List<string>
{
"Henry",
"Shirley",
"Ann",
"Peter",
"Nancy"
};
Lets iterate over this with foreach first:
foreach (var name in names)
{
Console.WriteLine(name);
}
We could expand this into:
using (v...
How do I check if there are duplicates in a flat list?
...of the number of items in the list!
For longer lists with hashable items (strings, numbers, &c):
def anydup(thelist):
seen = set()
for x in thelist:
if x in seen: return True
seen.add(x)
return False
If your items are not hashable (sublists, dicts, etc) it gets hairier, though ...
How can I see all the issues I'm watching on Github?
...
GET /orgs/:org/issues
Parameters
Name Type Description
filter string Indicates which sorts of issues to return. Can be one of:
* assigned: Issues assigned to you
* created: Issues created by you
* mentioned: Issues mentioning you
* subscribed: Issues you're subscribed to updates for
* ...
How to change the default charset of a MySQL table?
...e_prospection
CHARACTER SET utf8,
COLLATE utf8_general_ci;
To change string column charset exceute this query:
ALTER TABLE etape_prospection
CHANGE COLUMN etape_prosp_comment etape_prosp_comment TEXT CHARACTER SET utf8 COLLATE utf8_general_ci;
...
Does const mean thread-safe in C++11?
... @Ben Voigt: It is my understanding that the C++11 specification for std::string is worded in a way that already forbids COW. I don't remember the specifics, though...
– K-ballo
Jan 2 '13 at 19:18
...
Why XML-Serializable class need a parameterless constructor
...o immediately populate all fields. It
does not create an uninitialized
string, since creating an empty
instance of an immutable type serves
no purpose.
I have my own serialization engine, but I don't intend making it use FormatterServices; I quite like knowing that a constructor (any const...
RRSet of type CNAME with DNS name foo.com. is not permitted at apex in zone bar.com
...angeBatch = new ChangeBatch();
var rRs = new ResourceRecordSet(string.Format("{0}.{1}",image.Name, "testing.foo.bar.com"), RRType.CNAME) {TTL=60,ResourceRecords = new List<ResourceRecord>() { new ResourceRecord(image.PublicDns)} };
var change = new Change(ChangeAction.U...
No ConcurrentList in .Net 4.0?
...ent access. E.g. the following is not atomic var l = new ConcurrentList<string>(); /* ... */ l[0] += "asdf";. In general, any read-write combo can lead you into deep trouble when done concurrently. That is why concurrent data structures generally provide methods for those, like ConcurrentDicti...
Biggest advantage to using ASP.Net MVC vs web forms
...o confused how it allows RESTful urls when HttpContext.RewritePath Method (String) has been around since .NET 2.0 ?
– Mark Broadhurst
Sep 9 '10 at 15:48
...
Memoization in Haskell?
...ined over the range [0..].) It works searches the tree by treating n as a string of bits, and reading through the bits in reverse. If the bit is 1, it takes the right-hand branch. If the bit is 0, it takes the left-hand branch. It stops when it reaches the last bit (which must be a 1).
index' (...
