大约有 40,000 项符合查询结果（耗时：0.0738秒） [XML]
How can I add an item to a IEnumerable collection?
...ot necessarily represent a collection at all! For example:
IEnumerable<string> ReadLines()
{
string s;
do
{
s = Console.ReadLine();
yield return s;
} while (!string.IsNullOrEmpty(s));
}
IEnumerable<string> lines = ReadLines();
lines.Add("foo") //...
Fragment over another fragment issue
...he bottom fragment has to be informed the top one is gone. It's just added extra logic to maintain.
– X.Y.
Nov 14 '19 at 3:20
...
MySQL Fire Trigger for both Insert and Update
...
@luismartingil there is probably some extra overhead of calling a procedure vs. inlining it. But in exchange you get easier maintenance and a guarantee that the two triggers' code won't accidentally diverge.
– derobert
Oct 9...
How does Duff's device work?
...nion that is the key to understanding this code.
– Richard Chambers
Apr 20 '13 at 23:03
3
Am I mi...
Is there a way to use SVG as content in a pseudo element :before or :after
...
Making use of CSS sprites and data uri gives extra interesting benefits like fast loading and less requests AND we get IE8 support by using image/base64:
Codepen sample using SVG
HTML
<div class="div1"></div>
<div class="div2"></div>
CSS
.d...
How to convert PascalCase to pascal_case?
...Load' => 'pdf_load',
'startMIDDLELast' => 'start_middle_last',
'AString' => 'a_string',
'Some4Numbers234' => 'some4_numbers234',
'TEST123String' => 'test123_string',
);
foreach ($tests as $test => $result) {
$output = from_camel_case($test);
if ($output === $result) {
...
How can I perform a str_replace in JavaScript, replacing text in JavaScript?
...
Using regex for string replacement is significantly slower than using a string replace.
As demonstrated on JSPerf, you can have different levels of efficiency for creating a regex, but all of them are significantly slower than a simple strin...
Bash command to sum a column of numbers [duplicate]
...s filter out negative numbers. With awk you can easily and sensibly add in extra logic, with the bc solution you end up with piping through yet another command (cut or grep)
– James Anderson
Jun 23 '10 at 8:26
...
Is there a way to check if int is legal enum in C#?
...lue, Enum.IsDefined(typeof(PetType), value));
// Call IsDefined with string containing member name.
value = "Rodent";
Console.WriteLine("{0}: {1}", value, Enum.IsDefined(typeof(PetType), value));
// Call IsDefined with a variable of type PetType.
value = PetType.Dog;
...
Add CSS or JavaScript files to layout head from views or partial views
....ScriptFormat);
}
}
public class ItemRegistrar
{
private readonly string _format;
private readonly IList<string> _items;
public ItemRegistrar(string format)
{
_format = format;
_items = new List<string>();
}
public ItemRegistrar Add(string u...