I have an Array (test) with two nested hashes. What am trying to do is replace the Key value ("idea"=>"Hi") of the first hash (thing). But when i run the program it crashes and i haven't got an error message. I have tried a few variations, but the same results so I'm clearly missing a key step.
Thanks in advance for the help.
test=[thing={"idea"=>"Hi", "dumb"=>"test"}, thing2={"idea"=>"not sure", "dumb"=>"not"}]
puts test [0]
test=[0] [thing] ["idea"]="Bye"
puts test [0]
gets
You need to:
=> instead of = between hash keys and values,= in test=[0] [thing] ["idea"]:test = [{'thing' => { 'idea'=>'Hi', 'dumb' => 'test' }},
{'thing2' => {'idea' => 'not sure', 'dumb' => 'not'}}]
puts test[0] # {"thing"=>{"idea"=>"Hi", "dumb"=>"test"}}
test[0]['thing']['idea']='Bye'
puts test[0] # {"thing"=>{"idea"=>"Bye", "dumb"=>"test"}}
Also note that your original code as posted gives me an error, contrary to what you observed:
test=[thing={"idea"=>"Hi", "dumb"=>"test"}, thing2={"idea"=>"not sure", "dumb"=>"not"}]
puts test [0]
test=[0] [thing] ["idea"]="Bye" # Error: no implicit conversion of Hash into Integer (TypeError)
This error message should alert you that something wrong is going on with this line (or before). The error may look cryptic. But the proximal cause of it is that thing has been assigned to a hash before: thing={"idea"=>"Hi", "dumb"=>"test"}. And on this line the interpreter tries to use thing hash as an (integer) index into the array [0] - and fails to cast hash as integer. Note that the interpreter tries to treat [0] [thing] ["idea"]="Bye" as an assignment.
Long story short, make sure the error messages are displayed. Perhaps they are hidden, for example, by redirecting stderr to a file or /dev/null.
