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What are the Ruby Gotchas a newbie should be warned about? [closed]
...s.
To denote floating point numbers, one must follow with a zero digit (99.0) or an explicit conversion (99.to_f). It is insufficient to append a dot (99.), because numbers are susceptible to method syntax.
Boolean evaluation of non-boolean data is strict: 0, "" and [] are all evaluated to true. In ...
A gentle tutorial to Emacs/Swank/Paredit for Clojure
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[Edit from non-author: this is from 2010, and the process has been significantly simplified since May 2011. I'll add a post to this answer with my setup notes as of Feb 2012.]
You'll need to put together a few pieces: Emacs, SLIME (which works perfectly well wi...
Formatting Decimal places in R
I have a number, for example 1.128347132904321674821 that I would like to show as only two decimal places when output to screen (or written to a file). How does one do that?
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How to detect my browser version and operating system using JavaScript?
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10 Answers
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Active
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How to check if an array field contains a unique value or another array in MongoDB?
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220
Try this out:
db.blogpost.find({ 'tags' : 'tag1'}); //1
db.blogpost.find({ 'tags' : { $all : [ ...
HAProxy redirecting http to https (ssl)
...my site to support https. Thus, I'd like to redirect all requests on port 80 to port 443.
15 Answers
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How to translate between Windows and IANA time zones?
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The primary source of the data for conversion between Windows and IANA time zone identifiers is...
Convert a string to regular expression ruby
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150
Looks like here you need the initial string to be in single quotes (refer this page)
>> s...
Print array elements on separate lines in Bash?
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450
Try doing this :
$ printf '%s\n' "${my_array[@]}"
The difference between $@ and $*:
Unquote...