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Don't understand why UnboundLocalError occurs (closure) [duplicate]
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169
Python doesn't have variable declarations, so it has to figure out the scope of variables itse...
How do I put double quotes in a string in vba?
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187
I find the easiest way is to double up on the quotes to handle a quote.
Worksheets("Sheet1")....
Using querySelector with IDs that are numbers
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109
It is valid, but requires some special handling. From here: http://mathiasbynens.be/notes/css...
How do I list one filename per output line in Linux?
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Use the -1 option (note this is a "one" digit, not a lowercase letter "L"), like this:
ls -1a
First, though, make sure your ls supports -1. GNU coreutils (installed on standard Linux systems) and Solaris do; but if in doubt, use...
Rails formatting date
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Use
Model.created_at.strftime("%FT%T")
where,
%F - The ISO 8601 date format (%Y-%m-%d)
%T - 24-hour time (%H:%M:%S)
Following are some of the frequently used useful list of Date and Time formats that you could specify in strftime method:
Date (Year, Month, Day):
%Y - Year with cent...
Make a negative number positive
...ers. However, I want any negatives numbers to be treated as positives. So (1)+(2)+(1)+(-1) should equal 5.
21 Answers
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How to convert ActiveRecord results into an array of hashes
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212
as_json
You should use as_json method which converts ActiveRecord objects to Ruby Hashes despi...
How do I execute a Git command without being in the repository?
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106
Try:
git --git-dir=/home/repo/.git log
It is important to give the path all the way up to t...