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Generate a random number in the range 1 - 10
... in: ERROR: operator does not exist: date + double precision Does trunc really return integers?
– Bogdan Gusiev
Jan 26 '10 at 12:44
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Using regular expressions to parse HTML: why not?
... I assumed we were discussing Perl-type regexes where they aren't actually regular expressions.
– Hank Gay
Feb 26 '09 at 16:12
5
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What should every JavaScript programmer know? [closed]
... often hiding the sometimes-ugly details of how JavaScript and the DOM actually work from you. If your aim is to be able to say “I know JavaScript”, then investing a lot of time in a framework is opposed to that.
Here are some JavaScript language features that you should know to grok what it's ...
Throwing cats out of windows
Imagine you're in a tall building with a cat. The cat can survive a fall out of a low story window, but will die if thrown from a high floor. How can you figure out the longest drop that the cat can survive, using the least number of attempts?
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Parsing JSON using Json.net
... @Marc Gravell: Thanks a lot! I knew nothing about JSon. But this example allowed me easily create configuration file (with hierarchical structure) for my application.
– Peter17
Apr 7 '11 at 15:17
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How to prevent ajax requests to follow redirects using jQuery
...t) redirection is the part of XMLHttpRequest specification (see here especially the words "... transparently follow the redirect ..."). The standard mention only that the user agent (the web browser) can prevent or notify of certain kinds of automatic redirections, but it's not a part of XMLHttpRequ...
how to use sed, awk, or gawk to print only what is matched?
...use -E sed option to trigger modern RE format. Check re_format(7), specifically last paragraph of DESCRIPTION developer.apple.com/library/mac/#documentation/Darwin/Reference/…
– anddam
Mar 3 '13 at 16:33
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Are nested HTML comments possible?
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Yes, HTML and XML don't allow to nest comments using <!--. What you can do in your own code is define a comment element and ignore it actively during parsing.
– Aaron Digulla
Jan 14 '09 at 14:06
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How can I remove an SSH key?
...ove SSH key from gnome-keyring-daemon memory"
"Ubuntu: ssh-add -D deleting all identities does not work. Also, why are all identities auto-added?"
The exact issue is:
ssh-add -d/-D deletes only manually added keys from gnome-keyring.
There is no way to delete automatically added keys.
This is the ...
SQL keys, MUL vs PRI vs UNI
... non-unique index, then why does MUL show against only that column and not all other columns as well.?
– Vikas Goel
Jun 15 '19 at 23:23
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