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Environment variables in JS / Coffeescript

Anyway, can I get an environment variable (e.g. API key) to appear inside JS / Coffee using Rails 3.1?

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You can rename file.js to .js.erb and use ruby ​​to access ENV:

<% do_something_with ENV['key'] %> some_js_code
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Source: https://habr.com/ru/post/1243984/

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