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Could not locate Gemfile
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164
You do not have Gemfile in a directory where you run that command.
Gemfile is a file containing ...
How to check if bootstrap modal is open, so i can use jquery validate
...e can use:
($("element").data('bs.modal') || {})._isShown // Bootstrap 4
($("element").data('bs.modal') || {}).isShown // Bootstrap <= 3
as discussed in Twitter Bootstrap Modal - IsShown.
When the modal is not yet opened, .data('bs.modal') returns undefined, hence the || {} - which wil...
#1071 - Specified key was too long; max key length is 767 bytes
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34 Answers
34
Active
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How accurately should I store latitude and longitude?
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194
Accuracy versus decimal places at the equator
decimal degrees distance
places
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What is going wrong when Visual Studio tells me “xcopy exited with code 4”
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Xcopy exit code 4 means "Initialization error occurred. There is not enough memory or disk space, or you entered an invalid drive name or invalid syntax on the command line."
It looks like Visual Studio is supplying invalid arguments to xco...
How to validate IP address in Python? [duplicate]
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Hmm, seems to accept things like "4" and "192.168" and silently pads the rest with zeros. Technically valid, I'm sure, but not quite what I expected.
– krupan
Nov 25 '08 at 23:58
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Change MySQL default character set to UTF-8 in my.cnf?
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431
To set the default to UTF-8, you want to add the following to my.cnf
[client]
default-charact...
How to “add existing frameworks” in Xcode 4?
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edited Jun 4 '14 at 6:16
community wiki
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Convert column classes in data.table
...tor w/ 2 levels "A","B": 1 1 1 1 1 2 2 2 2 2
$ Quarter: chr "1" "2" "3" "4" ...
$ value : num -0.838 0.146 -1.059 -1.197 0.282 ...
Using lapply and as.character:
dtnew <- dt[, lapply(.SD, as.character), by=ID]
str(dtnew)
Classes ‘data.table’ and 'data.frame': 10 obs. of 3 variabl...
Iterate through pairs of items in a Python list [duplicate]
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94
From itertools receipes:
from itertools import tee
def pairwise(iterable):
"s -> (s0,s1)...