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In Ruby how do I generate a long string of repeated text?
...string replication. When you reverse the expression, we get 999999.*("0"). Now we are talking about the * method in the FixNum class, and that method refuses to take strings as arguments. It certainly could (for example, automatically making a best-effort to convert the argument to a FixNum) but the...
.prop('checked',false) or .removeAttr('checked')?
With the introduction of the prop method, now I need to know the accepted way of unchecking a checkbox. Is it:
4 Answers
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Convert SVG to PNG in Python
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Hi. Do you know how can i do the same but without writing to a file? I need to push png content to the browser from a webserver, so that way the user can download the image. Saving the png file is not a valid option in our project, that'...
What is the garbage collector in Java?
...ated in the previous iteration is not being used anymore -- that object is now considered "garbage".
Eventually, we'll start getting a lot of garbage, and memory will be used for objects which aren't being used anymore. If this keeps going on, eventually the Java Virtual Machine will run out of spa...
How to tell where a header file is included from?
... for just prepending to your compile line without strange effects like *.o now contains the output instead of the binary. Thanks for your help.
– harschware
Apr 29 '11 at 17:33
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ORA-01882: timezone region not found
...oracle:thin:@127.0.0.1:1521:tap", "username", "pw");
return conn;
}
now it is working!!
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How to use OpenSSL to encrypt/decrypt files?
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NOTE: PBKDF2 is now part of the openssl enc (finally). However the iteration count is extrememly low, and needs to be set to a much higher level. If that count is randomised, then you also get a extra level of 'saltiness' to your encryption...
What is HEAD in Git?
...using, for example, git checkout HEAD~2), which is not the commit id of a known head. See the article at eagain.net/articles/git-for-computer-scientists for a more thorough explanation.
– Silfheed
Jan 5 '16 at 22:24
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javascript regex - look behind alternative?
... that, the lookbehind has the same limitation which I didn't realise until now...
– daniel
Sep 11 '11 at 7:40
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regex for zip-code
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@ProVega: Reading the comments on the (now deleted) answer you linked to, that appears to be incorrect. For example, 00544 is a valid zip code; 544 is not.
– Keith Thompson
Dec 5 '14 at 20:59
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