How can display tally values from array?

Question

I'm trying to display values from array as table format

@array = {"Very Good"=>24, "Good"=>81, "Regular"=>3, "Bad"=>1, "Very Bad"=>1}

I have this array displaed but i want to display information as table format

<table>
  <tr>
     <td>Name</td>
     <td>Count</td>
  </tr>
  <% @array.each do |info|%>
  <tr>
    <td><% info[0].try("name") %></td>
    <td><% info[0].try("count") %></td>
  </tr>      
  <% end %>
</table>

I tried this code but it's displaying the information as row and i want to display values separated.

<% @array.map do |info| %>
 <%=  info %>
<% end %>

Here is the view display but i'm trying to display as table format (organized) with column name and column count.

<%= @array.tally %>

It displays with brackets:

{"Very Good"=>24, "Good"=>81, "Regular"=>3, "Bad"=>1, "Very Bad"=>1}

It seems you're mixing up stuff here; it looks like you want to go over the pairs of keys -> values, but don't have a clear idea of how they're structured. Have you taken a look at Hash#to_a? — Pipetus
– Pipetus, Commented Jun 16, 2022 at 1:33
@array = { ... } – despite the variable name, that's a hash. — Stefan
– Stefan, Commented Jun 16, 2022 at 7:42

thiebo · Accepted Answer · 2022-06-16 07:35:38Z

3

<table>
  <tr>
     <td>Name</td>
     <td>Count</td>
  </tr>
  <% @array.each do |key, value|%>
  <tr>
    <td><%= key %></td>
    <td><%= value %></td>
  </tr>      
  <% end %>
</table>

you also forgot the = to display the data <%= not <%.

answered Jun 16, 2022 at 7:35

thiebo

1,4672 gold badges24 silver badges46 bronze badges

Sign up to request clarification or add additional context in comments.

1 Comment

Carlos Morales Over a year ago

just a last question how can i order by key asc?

LihnNguyen · Accepted Answer · 2022-06-24 23:28:17Z

2

#When iterating over hashes, two placeholder variables are needed to represent each key/value pair.

@array = {"Very Good"=>24, "Good"=>81, "Regular"=>3, "Bad"=>1, "Very Bad"=>1}

@array.each do |key, value|
   p key // "Very Good, Good, Regular, Bad, Very Bad
   p value // 24,81, 3, 1, 1
end

Sort by with hash with value sort_by{|k, v| v}. If you sort with key, you can change sort_by{|k, v| k}

sortASC = Hash[@array.sort_by{|k, v| v}]
sortDESC =  Hash[@array.sort_by{|k, v| v}.reverse]

edited Jun 24, 2022 at 23:28

answered Jun 16, 2022 at 4:21

LihnNguyen

8836 silver badges12 bronze badges

2 Comments

Carlos Morales Over a year ago

just a last question how can i order by key asc?

Carlos Morales Over a year ago

Well i was trying to get a solution without hash just using each do

Collectives™ on Stack Overflow

How can display tally values from array?

2 Answers 2

1 Comment

2 Comments

Your Answer

Hot Network Questions

Collectives™ on Stack Overflow

2 Answers 2

1 Comment

2 Comments

Your Answer

Sign up or log in

Post as a guest

Related