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Double vs single quotes
I'm really new to Ruby and I'm trying to understand if there's a specific time when I should use "" vs '' .
8 Answers
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Python `if x is not None` or `if not x is None`?
I've always thought of the if not x is None version to be more clear, but Google's style guide and PEP-8 both use if x is not None . Is there any minor performance difference (I'm assuming not), and is there any case where one really doesn't fit (making the other a clear winner for my convent...
Ruby Bundle Symbol not found: _SSLv2_client_method (LoadError)
I was doing attempting to do some updates to openssl using homebrew and I somehow managed to break everything. I can't do anything now, this is what I get when I try to do bundle install:
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Map implementation with duplicate keys
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You are searching for a multimap, and indeed both commons-collections and Guava have several implementations for that. Multimaps allow for multiple keys by maintaining a collection of values per key, i.e. you can put a single object into the map, but you retrieve a coll...
Image inside div has extra space below the image
Why in the following code the height of the div is bigger than the height of the img ? There is a gap below the image, but it doesn't seems to be a padding/margin.
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Convert php array to Javascript
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Spudley's answer is fine.
Security Notice: The following should not be necessary any longer for you
If you don't have PHP 5.2 you can use something like this:
function js_str($s)
{
return '"' . addcslashes($s, "\0..\37\"\\") . '"';
}
function js_array($array)
{
$temp = array_map('...
Conditional formatting based on another cell's value
I'm using Google Sheets for a daily dashboard. What I need is to change the background color of cell B5 based on the value of another cell - C5. If C5 is greater than 80% then the background color is green but if it's below, it will be amber/red.
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The shortest possible output from git log containing author and date
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git log --pretty=format:"%h%x09%an%x09%ad%x09%s"
did the job. This outputs:
fbc3503 mads Thu Dec 4 07:43:27 2008 +0000 show mobile if phone is null...
ec36490 jesper Wed Nov 26 05:41:37 2008 +0000 Cleanup after [942]: Using timezon
ae62afd tobias Tue Nov 25 21:42:55...
Java inner class and static nested class
What is the main difference between an inner class and a static nested class in Java? Does design / implementation play a role in choosing one of these?
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Convert string to binary in python
I am in need of a way to get the binary representation of a string in python. e.g.
8 Answers
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