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Why does ++[[]][+[]]+[+[]] return the string “10”?
... sure how this is possible. ++[[]][0] returns indeed 1, but ++[] throws an error. This is remarkable because it looks like ++[[]][0] does boil down to ++[]. Do you perhaps have any idea why ++[] throws an error whereas ++[[]][0] does not?
– pimvdb
Sep 9 '11 at ...
How do I set up email confirmation with Devise?
...evise no longer provides migration helpers, and so t.confirmable raises an error. Instead, copy the block labeled "Confirmable" from their migration guide.
3. Generate the devise views, with either of the following commands,so you can override the devise mailer views:
rails generate devise:views #...
Trying to fix line-endings with git filter-branch, but having no luck
... while read file; do fromdos $file; done
I'm not totally sure about your error messages. I successfully tested this method. What program is producing each? What files/directories do you not have permissions for? However, here's a stab at guessing what your it might be:
One easy way to get a 'file...
How to check if a map contains a key in Go?
...
I'm getting this error when I try that: assignment mismatch: 2 variables but 1 values
– raphael75
Jul 8 at 13:39
add...
Print all day-dates between two dates [duplicate]
...pe and sanity check. start and end args default set to None is asking for errors.
– Ramez Ashraf
Jun 25 '17 at 11:52
...
What is null in Java?
...ow borderline subjective. Some people say that null causes many programmer errors that could've been avoided. Some say that in a language that catches NullPointerException like Java, it's good to use it because you will fail-fast on programmer errors. Some people avoid null by using Null object patt...
Lua string to int
...local function ToInteger(number)
return math.floor(tonumber(number) or error("Could not cast '" .. tostring(number) .. "' to number.'"))
end
In which case you explicitly convert the string (or really, whatever it is) into a number, and then truncate the number like an (int) cast would do in Ja...
Run php script as daemon process
... script!
# Note, in this example, if your PHP script returns
# the string "ERROR", the daemon will stop itself.
script
[ $(exec /usr/bin/php -f /path/to/your/script.php) = 'ERROR' ] && ( stop; exit 1; )
end script
Starting & stopping your daemon:
sudo service myphpworker start
sud...
How do you give iframe 100% height [duplicate]
...d on Chrome 30. Haven't tested on other browsers though. I came across the error on Firefox because the page I was testing had very little content... It could be it's my meager markup or the CSS reset altering the output, but if I experienced this error I guess the accepted answer doesn't work in ev...
Eclipse Android Plugin — libncurses.so.5
... @Oin this is the first thread that shows up for "android ncurses 5 so error" so it is relevant for other distros/packaging systems as well.
– Jason Axelson
May 30 '13 at 20:46
...