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Automatic HTTPS connection/redirect with node.js/express
.../ res.redirect('https://example.com' + req.url);
})
// have it listen on 8080
http.listen(8080);
The https express server listens ATM on 3000. I set up these iptables rules so that node doesn't have to run as root:
iptables -t nat -A PREROUTING -i eth0 -p tcp --dport 80 -j REDIRECT --to-port 8080...
Lua string to int
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310
Use the tonumber function. As in a = tonumber("10").
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Temporarily put away uncommitted changes in Subversion (a la “git-stash”)
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edited Jun 8 '18 at 10:38
Lii
9,33555 gold badges5151 silver badges7070 bronze badges
answered Oct ...
Omit rows containing specific column of NA
... put it into a function thusly:
DF <- data.frame(x = c(1, 2, 3), y = c(0, 10, NA), z=c(NA, 33, 22))
completeFun <- function(data, desiredCols) {
completeVec <- complete.cases(data[, desiredCols])
return(data[completeVec, ])
}
completeFun(DF, "y")
# x y z
# 1 1 0 NA
# 2 2 10 33
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What does the comma operator , do?
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answered Sep 9 '08 at 18:37
lillqlillq
12.5k2020 gold badges5050 silver badges5858 bronze badges
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Python name mangling
...ame, age):
self.name = name
self._age = age if age >= 0 else 0
@property
def age(self):
return self._age
@age.setter
def age(self, age):
if age >= 0:
self._age = age
else:
self._age = 0
What about t...
Get DateTime.Now with milliseconds precision
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309
How can I exactly construct a time stamp of actual time with milliseconds precision?
I sus...
Detect Safari browser
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110
You can easily use index of Chrome to filter out Chrome:
var ua = navigator.userAgent.toLowerCa...
Play an audio file using jQuery when a button is clicked
...rrentTime. We will use this line in our example audioElement.currentTime = 0;. To achieve .stop() function we first pause the file then reset its time.
We may want to know the length of the audio file and the current playing time. We already learnt .currentTimeabove, to learn its length we use .dur...