ruby on rails - Why am I getting this TypeError - "can't convert Symbol into Integer"? -

i have array of hashes. each entry looks this:

- !map:hashie::mash    name: connor h peters   id: "506253404" 

i'm trying create second array, contains id values.

["506253404"] 

this how i'm doing it

second_array = first_array.map { |hash| hash[:id] } 

but i'm getting error

typeerror in pagescontroller#home can't convert symbol integer 

if try

second_array = first_array.map { |hash| hash["id"] } 

i get

typeerror in pagescontroller#home can't convert string integer 

what doing wrong? reading.

you're using hashie, isn't same hash ruby core. looking @ hashie github repo, seems can access hash keys methods:

first_array.map { |hash| hash.id } 

try out , see if works--make sure doesn't return object_id. such, may want double-check doing first_array.map { |hash| hash.name } see if you're accessing right data.

then, provided it's correct, can use proc id (but bit more brevity):

first_array.map(&:id)