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Get the IP address of the remote host
...ttpRequest class, which contains ServerVariables property which can provide us the IP address from REMOTE_ADDR property value.
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SELECT INTO Variable in MySQL DECLARE causes syntax error?
...O myvar FROM mytable WHERE uid=1;
SELECT myvar;
END
//
DELIMITER ;
call test ();
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PHP cURL HTTP CODE return 0
...eturns false, no HTTP status code, since a reply has never been received.
Call curl_error().
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Automatically add newline at end of curl response body
...d up with this really annoying condition where the shell prompt is in the middle of the line, and escaping is messed up enough that when I put the last curl command on the screen, deleting characters from that curl command deletes the wrong characters.
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How to switch a user per task or set of tasks?
...udo privileges ( sudo: yes ) because I'd like to do it for a certain user. Ideally I'd much rather use sudo to switch to that user and execute the commands normally. Because then I won't have to do my usual post commands clean up such as chowning directories. Here's a snippet from one of my playbook...
Last segment of URL in jquery
... @SebastianBarth this is not looking for query string parameter. The call to .pathname strips them out as the focus is to get the last segment of the url path regardless if there are query parameters or not.
– Dblock247
May 18 at 15:05
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Extracting the last n characters from a ruby string
...ast(100).join
=> "abcdefghij"
If you're using Ruby on Rails, you can call methods first and last on a string object. These methods are preferred as they're succinct and intuitive.
For example:
[1] pry(main)> a = 'abcdefg' ...
Why is access to the path denied?
...ete Method...
An UnauthorizedAccessException means one of 4 things:
The caller does not have the required permission.
The file is an executable file that is in use.
Path is a directory.
Path specified a read-only file.
s...
Soft wrap at 80 characters in Vim in window of arbitrary width
...wrap ) to wrap some code at 80 characters, regardless of my actual window width.
5 Answers
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Comparing boxed Long values 127 and 128
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Java caches Integer objects instances from the range -128 to 127. That said:
If you set to N Long variables the value 127 (cached), the same object instance will be pointed by all references. (N variables, 1 instance)
If you set to N Long variables the value 128 (not cached), you will have an ob...