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I have this hash:
h => {"67676.mpa"=>{:link=>"pool/sdafdsaff", :size=>4556}} > h.each do |key, value| > puts key > puts value > end 67676.mpa linkpool/sdafdsaffsize4556 How do I access the separate values in the value hash on the loop?
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Iterating over a Hash You can use the each method to iterate over all the elements in a Hash. However unlike Array#each , when you iterate over a Hash using each , it passes two values to the block: the key and the value of each element.
Loop over Perl hash values Perl allows to Loop over its Hash values. It means the hash is iterative type and one can iterate over its keys and values using 'for' loop and 'while' loop. In Perl, hash data structure is provided by the keys() function similar to the one present in Python programming language.
Each key can only have one value. But the same value can occur more than once inside a Hash, while each key can occur only once.
Value is a Hash to so you need iterate on it or you can get only values:-
h.each do |key, value| puts key value.each do |k,v| puts k puts v end end or
h.each do |key, value| puts key value.values.each do |v| puts v end end You'll want to recurse through the hash, here's a recursive method:
def ihash(h) h.each_pair do |k,v| if v.is_a?(Hash) puts "key: #{k} recursing..." ihash(v) else # MODIFY HERE! Look for what you want to find in the hash here puts "key: #{k} value: #{v}" end end end You can Then take any hash and pass it in:
h = { "x" => "a", "y" => { "y1" => { "y2" => "final" }, "yy1" => "hello" } } ihash(h) If you love us? You can donate to us via Paypal or buy me a coffee so we can maintain and grow! Thank you!
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