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...erver Error
The server encountered an internal error or misconfiguration and was unable to complete your request.
在apache日志中显示：
[root@mail ~]# tail -f /usr/local/httpd/logs/error_log
sh: /usr/sbin/sendmail: No such file or directory
sh: /usr/sbin/sendmail: No such file or dir...
Get specific object by id from array of objects in AngularJS
...h. Binary search is clever, sure, but only if the array is already sorted, and in reality is: 1. easy to poorly implement, 2. Harder to read if poorly implemented.
– Ben Lesh
Oct 25 '13 at 14:51
...
Storing Images in PostgreSQL
...
Updating to 2012, when we see that image sizes, and number of images, are growing and growing, in all applications...
We need some distinction between "original image" and "processed image", like thumbnail.
As Jcoby's answer says, there are two options, then, I recommend:
...
In JavaScript, why is “0” equal to false, but when tested by 'if' it is not false by itself?
...you explicitly do "0" == false, both sides are being converted to numbers, and then the comparison is performed.
When you do: if ("0") console.log("ha"), the string value is being tested. Any non-empty string is true, while an empty string is false.
Equal (==)
If the two operands are not o...
pythonic way to do something N times without an index variable?
Every day I love python more and more.
8 Answers
8
...
Bootstrap Carousel image doesn't align properly
...better results for than the default height:500px
– CrandellWS
Jul 27 '15 at 23:08
You should do .carousel-inner > ....
How do I determine if a port is open on a Windows server? [closed]
...e default option 'telnet' is not recognized as an internal or external command, operable program or batch file. To solve this, just enable it: Click *Start** → Control Panel → Programs → Turn Windows Features on or off. In the list, scroll down and select Telnet Client and click OK.
...
How to embed a SWF file in an HTML page?
...Object.
It is a simple open-source JavaScript library that is easy-to-use and standards-friendly method to embed Flash content.
It also offers Flash player version detection. If the user does not have the version of Flash required or has JavaScript disabled, they will see an alternate content. You...
Is there a regular expression to detect a valid regular expression?
...group start
(?:
(?:[^?+*{}()[\]\\|]+ # literals and ^, $
| \\. # escaped characters
| \[ (?: \^?\\. | \^[^\\] | [^\\^] ) # character classes
(?: [^\]\\]+ | \\. )* \]
| \( (?:\?[:=!]|\?<[=!]|\?>)? (?1)?? ...
How to compare only date components from DateTime in EF?
I am having two date values, one already stored in the database and the other selected by the user using DatePicker. The use case is to search for a particular date from the database.
...