大约有 47,000 项符合查询结果（耗时：0.0770秒） [XML]
Remove non-numeric characters (except periods and commas) from a string
...non-numeric characters and the comma and period/full stop as follows:
$testString = '12.322,11T';
echo preg_replace('/[^0-9,.]+/', '', $testString);
The pattern can also be expressed as /[^\d,.]+/
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C# Sort and OrderBy comparison
...Why not measure it:
class Program
{
class NameComparer : IComparer<string>
{
public int Compare(string x, string y)
{
return string.Compare(x, y, true);
}
}
class Person
{
public Person(string id, string name)
{
...
Fixing slow initial load for IIS
...e library which will retrieve your page.
ALSO : make sure you change the String URL variable to point at a URL that will load a route from your ASP.NET MVC site so the engine will run.
System.Timers.Timer webKeepAlive = new System.Timers.Timer();
Int64 counter = 0;
void Main()
{
webKeepAlive....
Large Object Heap Fragmentation
... the LOH to preallocate a few objects (such as the array used for interned strings). Some of these are less than 85000 bytes and thus would not normally be allocated on the LOH.
It is an implementation detail, but I assume the reason for this is to avoid unnecessary garbage collection of instances...
Why would adding a method add an ambiguous call, if it wouldn't be involved in the ambiguity
...o promises.)
A correct analysis follows. The candidates are:
0: C(params string[]) in its normal form
1: C(params string[]) in its expanded form
2: C<string>(string)
3: C(string, object)
Candidate zero is obviously inapplicable because string is not convertible to string[]. That leaves t...
querySelector, wildcard element match?
...to do a wildcard element name match using querySelector or querySelectorAll ? I see support for wildcards in attribute queries but not for the elements themselves.
...
How to get the IP address of the docker host from inside a docker container
...r, that's what bridge IP can give you (of course in the stndard "home" installation). Why anybody would need "real" host IP if it can be even outside of docker bridge and can be unaccessible? This is the solution for all people who just installed docker and want to play with it in a short time.
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Changing a specific column name in pandas DataFrame
...index=None, columns=None, copy=True, inplace=False)
Docstring:
Alter index and / or columns using input function or
functions. Function / dict values must be unique (1-to-1). Labels not
contained in a dict / Series will be left as-is.
Parameters
----------
index : dict-like or function, optional
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Find and replace in file and overwrite file doesn't work, it empties the file
...up of the original file before it does the changes in-place:
sed -i.bak s/STRING_TO_REPLACE/STRING_TO_REPLACE_IT/g index.html
Without the .bak the command will fail on some platforms, such as Mac OSX.
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Memcached vs. Redis? [closed]
...and will give you back memory it is no longer using.
I stored 100,000 ~2KB strings (~200MB) of random sentences into both. Memcached RAM usage grew to ~225MB. Redis RAM usage grew to ~228MB. After flushing both, redis dropped to ~29MB and memcached stayed at ~225MB. They are similarly efficient in h...