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Append value to empty vector in R?
...appending for larger vectors.
set.seed(21)
values <- sample(letters, 1e4, TRUE)
vector <- character(0)
# slow
system.time( for (i in 1:length(values)) vector[i] <- values[i] )
# user system elapsed
# 0.340 0.000 0.343
vector <- character(length(values))
# fast(er)
system.time(...
git add, commit and push commands in one?
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242
Building off of @Gavin's answer:
Making lazygit a function instead of an alias allows you to p...
Multiple glibc libraries on a single host
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234
It is very possible to have multiple versions of glibc on the same system (we do that every day)...
Can't use method return value in write context
...cted.
– SystemParadox
Sep 9 '11 at 14:20
20
@gcb: no, the PHP manual explicitly says it's identic...
How to add Git's branch name to the commit message?
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54
Use the prepare-commit-msg or commit-msg githook.
There are examples already in your PROJECT/.g...
How would I run an async Task method synchronously?
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24 Answers
24
Active
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create a trusted self-signed SSL cert for localhost (for use with Express/Node)
... the following command :
openssl req -x509 -nodes -days 365 -newkey rsa:2048 -keyout cert.key -out cert.pem -config req.cnf -sha256
Step 4. then outside of security folder, in your express app do something like this: (credit goes to @Diego Mello)
backend
/security
/server.js
server.js:
cons...
Checking if a string is empty or null in Java [duplicate]
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answered Feb 6 '13 at 4:14
Pradeep SimhaPradeep Simha
15.4k1616 gold badges4747 silver badges102102 bronze badges
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Handle Guzzle exception and get HTTP body
I would like to handle errors from Guzzle when the server returns 4xx and 5xx status codes. I make a request like this:
5 A...
Get the current script file name
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417
Just use the PHP magic constant __FILE__ to get the current filename.
But it seems you want t...