Re: [External] Re: How to compare a hash key with a string value

Thank you so much Jonathan for all of the helps.
I tried your code and it gave me the person number such as
person 1 , person 2, ete; but it does not give me the value of the
person.has_key?('width') on each of the person.

I still try to figure out why it did not execute this piece of code

 if person.has_key?('width')

   puts "The value of width is #{person['width']}"

 end


My original program is as followed:



hash = [{"label":"Name","value":"Bob","identifier":"field2","type":"oneLineText","page":1,"page_name":"Step 1","width":"100%"},{"label":"Email","value":"[email protected]","identifier":"field3","type":"email","page":1,"page_name":"Step 1","width":"100%"},{"label":"Phone Number","value":"","identifier":"field7","type":"oneLineText","page":1,"page_name":"Step 1","width":"100%"},{"label":"Comments","value":"some information about the compagny","identifier":"field5","type":"textarea","page":1,"page_name":"Step 1","width":"100%"}]






hash.each_with_index do |person, i|

 puts "Person is #{i}"



 if person.has_key?('width')

   puts "The value of width is #{person['width']}"

 end


________________________________
From: ruby-talk <[email protected]> on behalf of Jonathan Fagan <[email protected]>
Sent: Wednesday, October 23, 2019 1:48 PM
To: Ruby users <[email protected]>
Subject: [External] Re: How to compare a hash key with a string value

I am not 100% clear on the question, but you could possibly just do something like this?

hash.each_with_index do |person, i|
 puts "Person is #{i}"

 if person.has_key?('width')
   puts "The value of width is #{person['width']}"
 end

end

On Wed, Oct 23, 2019 at 10:36 AM Tran, Minh <[email protected]<mailto:[email protected]>> wrote:
Hello,
    I am having a scenario which I want to print out the value of a hash element when its key equals to a string value such as "width".
I try several alternatives but so far I have had a good result.
So if you know on how to do , please share it with me.

My hash table array looks like as the following:

hash = [{"label":"Name","value":"Bob","identifier":"field2","type":"oneLineText","page":1,"page_name":"Step 1","width":"100%"},{"label":"Email","value":"[email protected]<mailto:[email protected]>","identifier":"field3","type":"email","page":1,"page_name":"Step 1","width":"100%"},{"label":"Phone Number","value":"","identifier":"field7","type":"oneLineText","page":1,"page_name":"Step 1","width":"100%"},{"label":"Comments","value":"some information about the compagny","identifier":"field5","type":"textarea","page":1,"page_name":"Step 1","width":"100%"}]


My Ruby code is as the following where I need to print out the hash value when the hash key equals to "width"


i = 0
hash.each do |person|
 i += 1
 puts "Person is #{i}"
 person.each do |key, value|

    if key == "width"
      puts "The value of width is #{value}"
    end


  end
end



Thanks in advance for all of the helps.
Dun


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