In Ruby, how to output json from hash and give it line breaks and tabs

Question

I\'m trying to format {\"key\" => \"value\"} to turn it into :

{
    \"key\" : \"value\"
}

for writing into a json file. ri

Answer 1

For both line breaks and tabs, try

require 'json'
hash = {foo: 'bar'}
JSON.pretty_generate(hash, {indent: "\t", object_nl: "\n"})

NB! If you use single quotes with newlines ("\n") or tabs ("\t") they will not be interpreted as newlines but as an ordinary string containing one backslash and a letter. This is a common mistake. :)