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How do you discover model attributes in Rails?
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How to convert a ruby hash object to JSON?
How to convert a ruby hash object to JSON? So I am trying this example below & it doesn't work?
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What is the relationship between the docker host OS and the container base image OS?
I'm not certain that I'm asking the right question... but while I have been reading everything docker that I can get my hands on I see that I can install Docker on Ubuntu 12.04 (for example) and then I can install a Fedora container or a different version of ubuntu? (there is an example where the us...
Docker: adding a file from a parent directory
In my Dockerfile I've got :
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How to change highlighted occurrences color in Eclipse's sidebar?
When you have "Mark occurrences" enabled in Eclipse, placing the cursor on any type/variable/method/etc will highlight all occurrences in the text editor and place a faint bar in the right ruler to show you the location of other occurrences in the file.
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@Basic(optional = false) vs @Column(nullable = false) in JPA
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querySelector, wildcard element match?
...support for wildcards in attribute queries but not for the elements themselves.
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ERROR: permission denied for sequence cities_id_seq using Postgres
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Truncate number to two decimal places without rounding
Suppose I have a value of 15.7784514, I want to display it 15.77 with no rounding.
36 Answers
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Using numpad in Vi (Vim) via PuTTY
The numberpad does not work properly when using Vim through PuTTY. Instead of numbers I get
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