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Reducing MongoDB database file size
...compact command and WiredTiger it looks like the extra disk space will actually be released to the OS.
UPDATE: as of v1.9+ there is a compact command.
This command will perform a compaction "in-line". It will still need some extra space, but not as much.
MongoDB compresses the files by:
cop...
Clear MySQL query cache without restarting server
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answered Mar 8 '11 at 11:21
John ParkerJohn Parker
51.5k1111 gold badges120120 silver badges124124 bronze badges
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How to lay out Views in RelativeLayout programmatically?
I'm trying to achieve the following programmatically (rather than declaratively via XML):
9 Answers
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Download file from web in Python 3
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Community♦
111 silver badge
answered Aug 30 '11 at 13:49
Oleh PrypinOleh Prypin
27.4k77 g...
How to represent multiple conditions in a shell if statement?
...n this particular case, the parentheses aren't even needed, because -a actually has higher precedence than -o (unlike && and || in the shell - however, inside bash [[ ... ]] conditionals, && also has higher precedence than || ). If you wanted to avoid -a and -o for maximum robustness...
MYSQL OR vs IN performance
...than using OR.
Do not believe people who give their "opinion", science is all about testing and evidence.
I ran a loop of 1000x the equivalent queries (for consistency, I used sql_no_cache):
IN: 2.34969592094s
OR: 5.83781504631s
Update:
(I don't have the source code for the original test, as it...
How do I trim leading/trailing whitespace in a standard way?
... C? I'd roll my own, but I would think this is a common problem with an equally common solution.
38 Answers
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Animate scrollTop not working in firefox
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Firefox places the overflow at the html level, unless specifically styled to behave differently.
To get it to work in Firefox, use
$('body,html').animate( ... );
Working example
The CSS solution would be to set the following styles:
html { overflow: hidden; height: 100%; }
body { ...
How can I test if a letter in a string is uppercase or lowercase using JavaScript?
...uch as punctuation?
– LarsH
Jun 10 '11 at 14:25
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@LarsH see this: stackoverflow.com/questions/10...
Programmatically register a broadcast receiver
I'd like to know what is the best practice/way of programmatically register a broadcast receiver. I want to register specific receivers according to user choice.
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