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How to empty a Heroku database
...k with Rails 4, it fails with a Couldn't create database error.
Edit 2014-10-09: You can use rake db:setup with Rails 4. It does give you a Couldn't create database error (because the database was already created using the heroku pg:reset command). But it also loads your database schema and your se...
Split a vector into chunks in R
...eiling():
> d <- rpois(73,5)
> d
[1] 3 1 11 4 1 2 3 2 4 10 10 2 7 4 6 6 2 1 1 2 3 8 3 10 7 4
[27] 3 4 4 1 1 7 2 4 6 0 5 7 4 6 8 4 7 12 4 6 8 4 2 7 6 5
[53] 4 5 4 5 5 8 7 7 7 6 2 4 3 3 8 11 6 6 1 8 4
> max <- 20
> ...
JavaScript file upload size validation
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answered Sep 15 '10 at 13:05
T.J. CrowderT.J. Crowder
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micro:bit 微控制器教程 · App Inventor 2 中文网
...ce (NUS)
数据格式: 字符串，以换行符分隔
连接距离: 约10米
延迟:
Pro JavaScript programmer interview questions (with answers) [closed]
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edited Apr 8 '10 at 20:50
community wiki
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How to calculate number of days between two given dates?
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twasbrillig
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answered Sep 29 '08 at 23:43
Harley HolcombeH...
How can I use a file in a command and redirect output to the same file without truncating it?
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edited Dec 10 '18 at 15:07
Trevor Boyd Smith
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How to scale a UIImageView proportionally?
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answered Feb 20 '10 at 0:29
Ken AbramsKen Abrams
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Concatenating Files And Insert New Line In Between Files
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10
AWK '{print $0}' *.txt
– timger
Jul 13 '15 at 3:20
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duplicate MIME type “text/html”?
...le.html#gzip_types
– alexmuller
Aug 10 '17 at 14:39
The same applies to sub_filter_types as mentioned in nginx.org/en/...