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Get the index of the object inside an array, matching a condition
...y version doesn't work (suppose it's found at index 0?). Both solutions do more iteration than required, which is less than ideal if the array is large (although the odds of it being so big a human would notice are low, unless lookups are happening a lot).
– T.J. Crowder
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Keyboard shortcut to change font size in Eclipse?
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How to use int.TryParse with nullable int? [duplicate]
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How to search and replace globally, starting from the cursor position and wrapping around the end of
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Check if the number is integer
...ing simpler functions and no hacks:
all.equal(a, as.integer(a))
What's more, you can test a whole vector at once, if you wish. Here's a function:
testInteger <- function(x){
test <- all.equal(x, as.integer(x), check.attributes = FALSE)
if(test == TRUE){ return(TRUE) }
else { return...
Heroku “psql: FATAL: remaining connection slots are reserved for non-replication superuser connectio
...blems connecting. If the server is restarting, it might take 15 minutes or more for the database to come back online.
Most apps that maintain a connection pool (like ActiveRecord in Rails) can just open a new connection to the database. However, in some cases an app won't be able to reconnect. If th...
Hash Code and Checksum - what's the difference?
...especially for inputs that are similar.
Cryptographic hashes have the much more stringent requirement that given a hash, you cannot construct an input that produces this hash. Computation times comes second, and depending on the applicatin it may even be desirable for the hash to be very slow to com...
Removing packages installed with go get
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The more I learn about go, the more I realize how terrible it is at doing very 'simple', 'native' stuff. I mean, how can you have a command for installing but no command to remove. How???
– Alf Moh
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How can I make git accept a self signed certificate?
...Flow -- I completely concur. I've edited this (now quite old) answer to be more polemical about disabling TLS/SSL cert verification.
– Christopher
Aug 17 '15 at 19:01
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