大约有 46,000 项符合查询结果（耗时：0.0971秒） [XML]
Regex empty string or email
...
This regex pattern will match an empty string:
^$
And this will match (crudely) an email or an empty string:
(^$|^.*@.*\..*$)
share
|
improve this answer
|
...
How to change node.js's console font color?
...round color to white because of eye problems, but the font is gray colored and it makes the messages unreadable. How can I change it?
...
Is there an interpreter for C? [closed]
...an interpreter for C. That is, in a Linux terminal I can type in "python" and then code in that interpreter. (I'm not sure interpreter the right word). This is really helpful for testing different things out and I'm curious if something similar exists for C. Though I doubt it. The only thing I ...
Version number comparison in Python
I want to write a cmp -like function which compares two version numbers and returns -1 , 0 , or 1 based on their compared valuses.
...
Oracle Differences between NVL and Coalesce
Are there non obvious differences between NVL and Coalesce in Oracle?
8 Answers
8
...
force Maven to copy dependencies into target/lib
...appen all the time, remove the <profiles>...<profile> wrappers and make the <build> tag be just under <project>
– Dan Halbert
Nov 6 '12 at 15:34
3
...
How can I get clickable hyperlinks in AlertDialog from a string resource?
...n AlertDialog . While the AlertDialog implementation happily underlines and colors any hyperlinks (defined using <a href="..."> in the string resource passed to Builder.setMessage ) supplied the links do not become clickable.
...
How to sort an array of associative arrays by value of a given key in PHP?
...for is array_multisort().
Here's an example taken straight from the manual and adapted to your case:
$price = array();
foreach ($inventory as $key => $row)
{
$price[$key] = $row['price'];
}
array_multisort($price, SORT_DESC, $inventory);
As of PHP 5.5.0 you can use array_column() instead of ...
Get list of databases from SQL Server
...
To expand on what @ChrisDiver said: SELECT name FROM sys.databases is the preferred approach now, rather than dbo.sysdatabases, which has been deprecated for a decade now.
– Micah
Feb 3 '16 a...
Set transparent background of an imageview on Android
...
@Harshad: Sorry, I didn't understand your answer. I don't have any RGB value, but a TextView with a background image that I want to be, say, 50% transparent. But, anyway, I found the answer here in stackoverflow: View.getBackground().setAlpha(50). Couldn't b...