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How to check file MIME type with javascript before upload?
...d see three remote images of different types displayed. At the top you can select a local image or data file, and the file signature and/or MIME type will be displayed.
Notice that even if an image is renamed, its true MIME type can be determined. See below.
Screenshot
// Return the first...
How can I access the MySQL command line with XAMPP for Windows?
... The buffer size for TCP/IP and socket communication.
--select-limit=# Automatic limit for SELECT when using --safe-updates.
--max-join-size=# Automatic limit for rows in a join when using
--safe-updates.
--secure-auth Refuse client connecting ...
How Pony (ORM) does its tricks?
...s query:
>>> from pony.orm.examples.estore import *
>>> select(c for c in Customer if c.country == 'USA').show()
Which will be translated into the following SQL:
SELECT "c"."id", "c"."email", "c"."password", "c"."name", "c"."country", "c"."address"
FROM "Customer" "c"
WHERE "c"...
整合phpcms v9和discuz X3.2实现同步登陆、退出免激活 - 更多技术 - 清泛网...
...cookietime = 31536000;
$uid = intval($get['uid']);
$query = DB::query("SELECT uid, username, password FROM ".DB::table('common_member')." WHERE uid='$uid'");
if ($member = DB::fetch($query))
{
dsetcookie('auth', authcode("$member[password]\t$member[uid]", 'ENCODE'), $cookietime);
}else
...
Finding most changed files in Git
...git log --pretty=format: --name-only | sort | uniq -c | sort -Descending | select -First 10
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How do I copy items from list to list without foreach?
...single property to another list is needed:
targetList.AddRange(sourceList.Select(i => i.NeededProperty));
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Delete a project from SonarQube
...
Updated for Sonar 2.11:
Select the project (from the home page)
Then click on the Project Deletion link on the bottom of the left panel
Finally, confirm using the Delete Project button
...
ORA-01882: timezone region not found
...ID to the Server. The server needs to know that zone. You can check with
SELECT DISTINCT tzname FROM V$TIMEZONE_NAMES where tzname like 'Etc%';
I have some db servers which know about 'Etc/UTC' and 'UTC' (tzfile version 18) but others only know 'UTC' (tz version 11).
SELECT FILENAME,VERSION fro...
Request Monitoring in Chrome
...
1.open developer tools in chrome(or use right click on your page and then select inspect element)
2.go to "Network" tab
3.find your ajax request in "Name Path" column
4.click on the specific ajax link
now you should see a new Panel in front of you request
in this panel select "Response" tab
...
Dynamic type languages versus static type languages
...ust another property of a datum, like the length of an array, or the first character of a string. And many dynamically typed languages also allow you to write out things like "error: the first character of this string should be a 'z'".
Another thing is that dynamically typed languages have the type ...