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Easy way to prevent Heroku idling?
... but it's also not really acceptable in my case that my users have to wait 20+ seconds to spin up a new dyno.
21 Answers
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Oracle: how to UPSERT (update or insert into a table?)
... Tony AndrewsTony Andrews
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How to install the JDK on Ubuntu Linux
...s more DRY
– bevacqua
Dec 18 '13 at 20:28
2
just replace everywhere java-6-openjdk to java-7-ope...
How can I index a MATLAB array returned by a function without first assigning it to a local variable
...ike magic :)
UPDATE:
Bad news, the above hack doesn't work anymore in R2015b! That's fine, it was undocumented functionality and we cannot rely on it as a supported feature :)
For those wondering where to find this type of thing, look in the folder fullfile(matlabroot,'bin','registry'). There's...
How to set Python's default version to 3.x on OS X?
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Santosh KumarSantosh Kumar
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How to make a great R reproducible example
...ector 1:10 in random order.
a random factor : x <- sample(letters[1:4], 20, replace = TRUE)
For matrices, one can use matrix(), eg :
matrix(1:10, ncol = 2)
Making data frames can be done using data.frame(). One should pay attention to name the entries in the data frame, and to not make it ov...
Can you give a Django app a verbose name for use throughout the admin?
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edited Oct 20 '18 at 11:44
Scott Stevens
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Vim search and replace selected text
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edited Apr 20 '15 at 15:39
skywinder
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Xcode warning: “Multiple build commands for output file”
...m a folder.
– samkass
Feb 17 '14 at 20:55
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show 5 more comments
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How to align input forms in HTML
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edited Jun 20 '18 at 8:30
Basj
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