CODEWITHSUNDEEP
ruby-on-railsjson
Kalpana Sharma
Kalpana Sharma

Reputation: 21

i want to get key value of array in ruby

In a .rb file I am using result = JSON.parse(res.body)['data']['results'] and get

[
  {"suggestion":"Lineman","id":"49.10526"},
  {"suggestion":"Linguist","id":"27.10195"},
  {"suggestion":"Librarian","id":"25.47"},
  {"suggestion":"Lifeguard","id":"33.39"},
  {"suggestion":"Line Cook","id":"35.30125"},
  {"suggestion":"Life Coach","id":"21.209"},
  {"suggestion":"Life Guard","id":"33.1001"}
]

now I want an array like

[
  "Lineman",
  "Linguist",
  "Librarian",
  "Lifeguard",
  "Line Cook",
  "Life Coach",
  "Life Guard"
]

What should I apply to JSON.parse(res.body)['data']['results']?

Upvotes: 0

Views: 172

Answers (2)

Sachin Singh
Sachin Singh

Reputation: 1108

Try this:

suggestions = result.pluck(:suggestion)
# ["Lineman", "Linguist", "Librarian", "Lifeguard", "Line Cook", "Life Coach", "Life Guard"]

This plucks all the suggestion values and returns them as an array.

Upvotes: 1

Vasfed
Vasfed

Reputation: 18504

You can use Enumerable#map:

  other_result = result.map { |val| val['suggestion'] }

it returns a new array with results of applying the block to initial array elements

Upvotes: 1

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