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Convert UNIX epoch to Date object
...="1970-01-01"))
[1] "2012-11-05"
R>
Edit: A few years later, we can now use the anytime package:
R> library(anytime)
R> anytime(1352068320)
[1] "2012-11-04 16:32:00 CST"
R> anydate(1352068320)
[1] "2012-11-04"
R>
Note how all this works without any format or origin arguments.
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Thread vs ThreadPool
...O), and their work will be short-lived, use the threadpool. If you don't know how many, but their work will be long-running, there's nothing in the platform to help you - but you might be able to find alternative threadpool implementations that fit.
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'Java' is not recognized as an internal or external command
...path similar to this.
C:\Program Files\Java\jdk-12.0.2\bin
Then click OK.
now in the start menu, type cmd.
open the command prompt.
type
java -version
If you did it right,it should show something like this.
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Possible to access the index in a Hash each loop?
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If you like to know Index of each iteration you could use .each_with_index
hash.each_with_index { |(key,value),index| ... }
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impr...
Concatenate strings in Less
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Thanks for the answer! This is perfect. Now I can make sure that even if the context path changes, there won't be a refactoring nightmare.
– juminoz
Apr 21 '12 at 18:16
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How to see top processes sorted by actual memory usage?
...cessarily hogged), needs to be cleared and re-allocated to what I am doing NOW - or even swaps to disk - is not an option. I have 16 GB of ram on this box, and I expect several GB of that to be kept free and available to running applications.
– JosephK
Jul 21 ...
How to replace multiple substrings of a string?
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nice! if you use python3 use items instead of iteritems (now removed in dicts stuff).
– e.arbitrio
Oct 24 '16 at 12:09
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undefined method `source_index' for Gem:Module (NoMethodError)
...gems version prior to 2.0.0, like 1.8.25 to get the functionality back for now. You can get a compatible version using gem update --system 1.8.25.
As a very important aside, Rails 2.3.5 needs to be updated to a minimum of 2.3.17. There are critical security vulnerabilities that open you up to some ...
Function of Project > Clean in Eclipse
...iles outside of Eclipse it will not pick up on the fact that the files are now missing, and you'll get build errors until you delete the files manually. Even then, that will not necessarily work either, especially if there are a lot of files missing. This happens to me rather often when I check out ...
CSS styling in Django forms
..."class":css})
Put this in your app's templatetags/ folder and you can now do
{{field|addcss:"form-control"}}
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