json_escape(s) public

A utility method for escaping HTML entities in JSON strings. This method is also aliased as j.

In your ERb templates, use this method to escape any HTML entities: 

  <%=j @person.to_json %>

Example:

  puts json_escape("is a > 0 & a < 10?")
  # => is a \u003E 0 \u0026 a \u003C 10?
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