I have this array:
{ :details=> [ { "account" =>"", "address" =>"", "category" =>"send", "amount" =>0.0, "fee" =>0.0 }, { "account" =>"payment", "address" =>"SXX5kpEyF8w1oK913wVg2ZbJWpLmWnCgAU", "category" =>"receive", "amount" =>1.0 } ] } How can I access the second "address" element in ruby? When I do
address: detail[:address] I get only the first one (which is empty).
How about:
data = { :details=> [ { "account" =>"", "address" =>"", "category" =>"send", "amount" =>0.0, "fee" =>0.0 }, { "account" =>"payment", "address" =>"SXX5kpEyF8w1oK913wVg2ZbJWpLmWnCgAU", "category" =>"receive", "amount" =>1.0 } ] } And then(Because, you never know the sequence of Hashes inside Array):
data[:details].detect{|d| !d['address'].empty? }['address'] Just address the second element of array
obj = { :details => [ { "account" =>"", "address" =>"", "category" =>"send", "amount" =>0.0, "fee" =>0.0 }, { "account" =>"payment", "address" =>"SXX5kpEyF8w1oK913wVg2ZbJWpLmWnCgAU", "category" =>"receive", "amount" =>1.0 } ] } obj[:details][1]['address'] Here is online REPL: http://repl.it/ZZm
Using the inject method you can get all of them like this:
[21] pry(main)> results = [] => [] [22] pry(main)> json[:details].inject { |sum, k| results << k["address"] } => [["SXX5kpEyF8w1oK913wVg2ZbJWpLmWnCgAU"]] 