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How to check if element in groovy array/hash/collection/list?
...this?
– Big McLargeHuge
Aug 7 at 22:01
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Filter rows which contain a certain string
...35 19.90 1 1 4 1 Toyota Corolla
4 21.5 4 120.1 97 3.70 2.465 20.01 1 0 3 1 Toyota Corona
If you would like to do it the other way round, namely excluding Toyota and Mazda cars, the filter command looks like this:
dplyr::filter(mtcars, !grepl('Toyota|Mazda', type))
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Change R default library path using .libPaths in Rprofile.site fails to work
...s RStudio material at: https://support.rstudio.com/hc/en-us/articles/200549016-Customizing-RStudio
In your case it appears that RStudio is not respecting the Rprofile.site settings or perhaps is overriding them by reading an .Rprofile setting from one of the RStudio defaults. It should also be ment...
Can two different strings generate the same MD5 hash code?
...ile there are no such known attacks (preimage attacks) against MD5 (as of 2011), it could become possible by extending the current research on collision attacks.
If these turn out to be a problem, I suggest looking at the SHA-2 series of hash functions (SHA-256, SHA-384 and SHA-512). The downside i...
How can I check if a key exists in a dictionary? [duplicate]
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answered Oct 2 '10 at 11:01
Rafał RawickiRafał Rawicki
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How to calculate date difference in JavaScript?
...t that date's year(diff from 1970), month, day etc.
var date1 = new Date(2010, 6, 17);
var date2 = new Date(2013, 12, 18);
var diff = new Date(date2.getTime() - date1.getTime());
// diff is: Thu Jul 05 1973 04:00:00 GMT+0300 (EEST)
console.log(diff.getUTCFullYear() - 1970); // Gives difference as ...
ng-repeat finish event
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edited Jul 31 '16 at 8:01
Muhammad Omar ElShourbagy
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Trigger change event of dropdown
...for me.
– TomoMiha
May 10 '16 at 10:01
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Send message to specific client with socket.io and node.js
... edited Oct 6 '19 at 12:33
Dev01
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answered Jan 10 '11 at 14:14
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How do I reattach to a detached mosh session?
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Alexander BurmakAlexander Burmak
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