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constant pointer vs pointer on a constant value [duplicate]
...The pointed data can sometimes be written by someone else. Or, it can be really constant, e.g. a string literal.
– Marquis of Lorne
May 26 '16 at 23:57
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Nginx not picking up site in sites-enabled?
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I had the same problem. It was because I had accidentally used a relative path with the symbolic link.
Are you sure you used full paths, e.g.:
ln -s /etc/nginx/sites-available/example.com.conf /etc/nginx/sites-enabled/example.com.conf
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target input by type and name (selector)
I need to change some checkbox inputs to hidden inputs for some but not all inputs on a page.
3 Answers
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In PHP, why does not show a parse error?
...t;? ... ?> (known as short_open_tag)
<?php ... ?> (the standard really)
<script language="php"> ... </script> (not recommended)
<% ... %> (deprecated and removed ASP-style tag after 5.3.0)
Apparently, you can open a PHP block one way, and close it the other. Didn't know ...
NameValueCollection vs Dictionary [duplicate]
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They aren't semantically identical. The NameValueCollection can have duplicate keys while the Dictionary cannot.
Personally if you don't have duplicate keys, then I would stick with the Dictionary. It's more modern, uses IEnumerable<> wh...
Execute Python script via crontab
...p/crontab.JTQ0My/crontab":22: bad minute errors in crontab file, can't install. Do you want to retry the same edit? (y/n)" if I type "y", I've returned to file edit. And if I type "n" the file is not saved. I add this line at last line of the file: "/1 * * * * /usr/bin/python script.py"
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MySQL ON DUPLICATE KEY - last insert id?
...le (a) VALUES (0)
ON DUPLICATE KEY UPDATE id=LAST_INSERT_ID(id), a=1
Is all here: http://dev.mysql.com/doc/refman/5.0/en/insert-on-duplicate.html
If a table contains an AUTO_INCREMENT column and INSERT ... UPDATE
inserts a row, the LAST_INSERT_ID() function returns the
AUTO_INCREMENT value. If t...
Is it possible to simulate key press events programmatically?
Is it possible to simulate key press events programmatically in JavaScript?
23 Answers
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Easiest way to convert a List to a Set in Java
...l context to warrant being the best/accepted answer, because there are pitfalls here depending on which implementations of Set and Map one is using; HashSet is assumed here.
– Madbreaks
Jul 3 '18 at 17:25
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How do I import a specific version of a package using go get?
coming from a Node environment I used to install a specific version of a vendor lib into the project folder ( node_modules ) by telling npm to install that version of that lib from the package.json or even directly from the console, like so:
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