大约有 4,000 项符合查询结果（耗时：0.0264秒） [XML]
Regular expression for letters, numbers and - _
...et to show how you can use this pattern:
<?php
$arr = array(
'screen123.css',
'screen-new-file.css',
'screen_new.js',
'screen new file.css'
);
foreach ($arr as $s) {
if (preg_match('/^[\w.-]*$/', $s)) {
print "$s is a match\n";
} else {
print "$s is NO match!!!\n";
};
}
...
HTTPS with Visual Studio's built-in ASP.NET Development Server
...ing the provided help, run SelfSSL. The command I used was: selfssl.exe /N:cn=[MACHINENAME] /K:1024 /V:90
/S:5 /P:443
The /S switch indicates which site to install the certificate. You can figure out the number by looking at your sites in IIS and counting (Starting at 1 for the first site, not 0),...
Convert Rows to columns using 'Pivot' in SQL Server
..., 212),
(105, 2, 78),
(109, 2, 97),
(105, 3, 60),
(102, 3, 123),
(101, 3, 220),
(109, 3, 87);
If your values are known, then you will hard-code the query:
select *
from
(
select store, week, xCount
from yt
) src
pivot
(
sum(xcount)
for week in ([1], [2], [3])
) pi...
How to use hex color values
...
How would you handle 123ABC? The compiler is burking at it not being a digit.
– Islam Q.
Mar 2 '16 at 6:28
1
...
What's your favorite “programmer” cartoon?
...
Oh! There can be only one:
It's sooo funny, because it's true :)
share
edited Feb 8 '17 at 14:08
...
Ruby ampersand colon shortcut [duplicate]
...
Fun to see the [*3..7] syntax. I didn't realize you could splat like that!
– Ben Coppock
Jul 11 '19 at 4:54
...
How do I find the maximum of 2 numbers?
...
Use the builtin function max.
Example:
max(2, 4) returns 4.
Just for giggles, there's a min as well...should you need it. :P
share
|
imp...
Ruby array to string conversion
...
I'll join the fun with:
['12','34','35','231'].join(', ')
EDIT:
"'#{['12','34','35','231'].join("', '")}'"
Some string interpolation to add the first and last single quote :P
...
Good beginners tutorial to socket.io? [closed]
...
A 'fun' way to learn socket.io is to play BrowserQuest by mozilla and look at its source code :-)
http://browserquest.mozilla.org/
https://github.com/mozilla/BrowserQuest
...
How to sort ArrayList in decreasing order?
...
Java 8
well doing this in java 8 is so much fun and easier
Collections.sort(variants,(a,b)->a.compareTo(b));
Collections.reverse(variants);
Lambda expressions rock here!!!
in case you needed a more than one line logic for comparing a and b you could write it li...