rails-livestamp is a simple jQuery plugin that makes it easy to provides automatically updating text to your timestamped HTML elements.

Installation
Add this line to your application’s Gemfile:

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gem 'rails-livestamp', '~> 1.1.3'

And then execute:

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bundle install

Or install it yourself as:

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gem install rails-livestamp

To use rails-livestamp add this require statement to your application.js file:

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//= require rails-livestamp

Usage
No extra JavaScript required! Just use a with the data-livestamp attribute set to the desired Unix timestamp (in seconds), like this:

If you use ERB:

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You discovered rails-livestamp <span data-livestamp="#{Time.now.to_i}"></span>.

If you use HAML:

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You discovered rails-livestamp
%span{"data-livestamp" => "#{Time.now.to_i}"}.

And you will see something like this:

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You discovered rails-livestamp a minutes ago.

Wait half a minute - the livestamp will update automatically.