大约有 25,400 项符合查询结果（耗时：0.0524秒） [XML]
Retrieving parameters from a URL
Given a URL like the following, how can I parse the value of the query parameters? For example, in this case I want the value of def .
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Remove the last character in a string in T-SQL?
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Alternatively: SELECT LEFT(YourColumnName, LEN(YourColumnName) - 1) FROM YourTable
– Kyle B.
Aug 10 '09 at 20:05
3
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How do you launch the JavaScript debugger in Google Chrome?
When using Google Chrome, I want to debug some JavaScript code. How can I do that?
15 Answers
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How can you check for a #hash in a URL using JavaScript?
I have some jQuery/JavaScript code that I want to run only when there is a hash ( # ) anchor link in a URL. How can you check for this character using JavaScript? I need a simple catch-all test that would detect URLs like these:
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how to run two commands in sudo?
...ample:
$ sudo -s -- 'whoami; whoami'
root
root
Your command would be something like:
sudo -u db2inst1 -s -- "db2 connect to ttt; db2 UPDATE CONTACT SET EMAIL_ADDRESS = 'mytestaccount@gmail.com'"
If your sudo version doesn't work with semicolons with -s (apparently, it doesn't if compiled wit...
Android screen size HDPI, LDPI, MDPI [duplicate]
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i mean screen size in pixels.
– evilone
May 29 '11 at 9:46
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iOS start Background Thread
...formSelectorInBackground:withObject: to spawn a new thread, then the performed selector is responsible for setting up the new thread's autorelease pool, run loop and other configuration details – see "Using NSObject to Spawn a Thread" in Apple's Threading Programming Guide.
You'd probably be bett...
How many system resources will be held for keeping 1,000,000 websocket open? [closed]
...swer:
This question is not unique to WebSockets since WebSockets are fundamentally long-lived TCP sockets with a HTTP-like handshake and minimal framing for messages.
The real question is: could a single server handle 1,000,000 simultaneous socket connections and what server resources would this c...
How to count lines in a document?
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Use wc:
wc -l <filename>
This will output the number of lines in <filename>:
$ wc -l /dir/file.txt
3272485 /dir/file.txt
Or, to omit the <filename> from the result use wc -l < <filename>:
$ wc -l < /dir/file.txt
3...
What is the difference between bool and Boolean types in C#
...rchangeable But why we need Aliases, From my point of view Boolean is more meaningful then bool and Int32 is more meaningful then int then why aliases ???
– Asim Sajjad
Mar 18 '10 at 11:39
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