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What does map(&:name) mean in Ruby?
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It's shorthand for tags.map(&:name.to_proc).join(' ')
If foo is an object with a to_proc method, then you can pass it to a method as &foo, which will call foo.to_proc and use that as the method's block.
The Symbol#to_proc method was originally added b...
How do I check if an HTML element is empty using jQuery?
I'm trying to call a function only if an HTML element is empty, using jQuery.
17 Answers
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Can't stop rails server
...n the PID column to kill the process:
For example:
$ kill -9 PID
And some of the other answers i found is:
To stop the rails server while it's running, press:
CTRL-C
CTRL-Z
You will get control back to bash. Then type (without the $):
$ fg
And this will go back into the process, and then ...
How to Add a Dotted Underline Beneath HTML Text
...o:
<html>
<head>
<!-- Other head stuff here, like title or meta -->
<style type="text/css">
u {
border-bottom: 1px dotted #000;
text-decoration: none;
}
</style>
</head>
<!-- Body, content here -->
</html>
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Lombok added but getters and setters not recognized in Intellij IDEA
... annotations but the getters and setters aren't generated. I get the same errors I would get if I tried accessing a getter or setter method that doesn't exist. What could I be missing?
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AttributeError: 'module' object has no attribute 'tests'
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Bad assumption in that message.
– AdamC
Jan 25 '16 at 22:10
1
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How can I grep for a string that begins with a dash/hyphen?
...yphen, like -X , in a file, but it's confusing this as a command line argument.
10 Answers
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How to connect to my http://localhost web server from Android Emulator
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@primpap :Can I use the machine name instead of the ip address??
– KJEjava48
Jun 17 '15 at 10:17
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How to delete a property from Google Analytics
... THANK YOU! That Admin UI is such a disaster.
– Anna_MediaGirl
Jul 18 '14 at 23:12
1
It seems Goo...
Loading a properties file from Java package
...paths (those without a leading '/') in getResource()/getResourceAsStream() mean that the resource will be searched relative to the directory which represents the package the class is in.
Using java.lang.String.class.getResource("foo.txt") would search for the (inexistent) file /java/lang/String/foo...