Creating array of hashes in ruby
Solution 1
Assuming what you mean by "rowofrows" is an array of arrays, heres a solution to what I think you're trying to accomplish:
array_of_arrays = [["abc",9898989898,"[email protected]"], ["def",9898989898,"[email protected]"]]
array_of_hashes = []
array_of_arrays.each { |record| array_of_hashes << {'name' => record[0], 'number' => record[1].to_i, 'email' => record[2]} }
p array_of_hashes
Will output your array of hashes:
[{"name"=>"abc", "number"=>9898989898, "email"=>"[email protected]"}, {"name"=>"def", "number"=>9898989898, "email"=>"[email protected]"}]
Solution 2
you can first define the array as
array = []
then you can define the hashes one by one as following and push them in the array.
hash1 = {:name => "mark" ,:age => 25}
and then do
array.push(hash1)
this will insert the hash into the array . Similarly you can push more hashes to create an array of hashes.
Solution 3
You could also do it directly within the push method like this:
First define your array:
@shopping_list_items = []
And add a new item to your list:
@shopping_list_items.push(description: "Apples", amount: 3)
Which will give you something like this:
=> [{:description=>"Apples", :amount=>3}]
Chirag Rupani
Tech Stack: C#, ASP.NET, ASP.NET core, ReactJS, T-SQL, Microsoft Azure, Entity Framework, JavaScript, Typescript, Html, CSS, Angular (latest Version), RXJS, Vue.js, Xunit, MSTest, Jasmine, Moq, JSON, Web API, UWP, WPF Interests: Agile, TDD, Progressive Web Apps, Reactive programming and continuous delivery
Updated on July 09, 2022Comments
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Chirag Rupani almost 2 years
I want to create an array of hashes in ruby as:
arr[0] "name": abc "mobile_num" :9898989898 "email" :[email protected] arr[1] "name": xyz "mobile_num" :9698989898 "email" :[email protected]
I have seen hash and array documentation. In all I found, I have to do something like
c = {} c["name"] = "abc" c["mobile_num"] = 9898989898 c["email"] = "[email protected]" arr << c
Iterating as in above statements in loop allows me to fill
arr
. I actually rowofrows with one row like["abc",9898989898,"[email protected]"]
. Is there any better way to do this?