Converting Ruby String with array into array and iterate it

Question

I would like to convert the following string into an array/nested array and iterate through it, so that i could use values from it.

 str = "[[{"one": "1"}],[{"two": "2"}],[{"three": "3"}]]"

// I want to use value inside the {} brace

data = JSON.parse(str) // You might need to add the "gem 'json'" to the Gemfile first. — davidb
– davidb, Commented Jun 20, 2012 at 10:44

Amadan · Accepted Answer · 2012-06-20 10:41:36Z

2

That is JSON(*), and can be parsed as JSON.

require 'json'
data = JSON.parse(str)

And then you can use the usual Array#each or Hash#each iterators.

*) Or at least it would be JSON, if it wasn't a syntax error. You can't have an unescaped double quote inside double quotes.

answered Jun 20, 2012 at 10:41

Amadan

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2 Comments

ANUP Over a year ago

Thanks. with that i am getting {"one": "1"} and {"two": "2"} in for each loop. but when in loop i m trying to get ele["one"] or ele["two"] getting error like - TypeError (can't convert String into Integer):

Amadan Over a year ago

Note that each hash in your data is wrapped in another array. The structure is Array of Arrays of Hashes. You would need ele[0]["one"] to get to the "1", or onion together two each loops (one for the outer Array, one for the inner Array).

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