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How to check with javascript if connection is local host?
...ating this as wrong. This simple snipped works perfect for me on localhost and production. My software knows weather to serve ads - or not, with 1 simple line of code. Thanks OP.
– Andy
Mar 17 '17 at 20:33
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Get the short Git version hash
...
Try this:
git rev-parse --short HEAD
The command git rev-parse can do a remarkable number of different things, so you'd need to go through the documentation very carefully to spot that though.
s...
How do I get the parent directory in Python?
...is an entire RFC 1808 written to address the issue of relative path in URI and all the subtlety of the presence and absence of a trailing /. If you know of any documentation that says they should be treated equivalent in general please point it out.
– Wai Yip Tung
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Bash function to find newest file matching pattern
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The ls command has a parameter -t to sort by time. You can then grab the first (newest) with head -1.
ls -t b2* | head -1
But beware: Why you shouldn't parse the output of ls
My personal opinion: parsing ls is only dangerous when th...
Define all functions in one .R file, call them from another .R file. How, if possible?
...If abc.R is:
fooABC <- function(x) {
k <- x+1
return(k)
}
and xyz.R is:
fooXYZ <- function(x) {
k <- fooABC(x)+1
return(k)
}
then this will work:
> source("abc.R")
> source("xyz.R")
> fooXYZ(3)
[1] 5
>
Even if there are cyclical dependencies, this wi...
SQL: How to properly check if a record exists
...optimize SELECT COUNT(*) anyway, so while there is a difference in theory (and older databases), you shouldn't notice any difference in practice.
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Node.js: How to send headers with form data using request module?
...form data is not sent in a proper way. I have almost the same code in .Net and in case form data is sent I should not have login form in body and should have token. I'll post it here soon, probably it will help
– Mike G.
Jun 17 '13 at 6:32
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Remove Trailing Slash From String PHP
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Sure it is, simply check if the last character is a slash and then nuke that one.
if(substr($string, -1) == '/') {
$string = substr($string, 0, -1);
}
Another (probably better) option would be using rtrim() - this one removes all trailing slashes:
$string = rtrim($string, '/...
pretty-print JSON using JavaScript
...-to-read (for human readers) format? I'm looking primarily for indentation and whitespace, with perhaps even colors / font-styles / etc.
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How to remove array element in mongodb?
...mber: '+1786543589455' } } }
);
It will find document with the given _id and remove the phone +1786543589455 from its contact.phone array.
You can use $unset to unset the value in the array (set it to null), but not to remove it completely.
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