Why is .each repeating the array after completion in my rails view? [duplicate]

Question

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What is the difference between <%, <%=, <%# and -%> in ERB in Rails? (7 answers)

Closed 2 years ago.

In my rails view page, I have the following loop that should loop through my tag_list array and print each tag:

<%= @user.profile.tag_list.each do |tag| %>
    <%= tag %>
<% end %>

For some reason, it repeats the array after it prints each individual tag. For example, this array has two elements:

["ruby", "python"]

The output of the each method is "rubypython ruby,python". The output should just be "ruby python". How do I fix this?

By the way, I am using the acts-as-taggable-on gem to generate the tags, but that should not make a difference since it is just a simple array.

Answer 1

you should remove the equals sign

<%= @user.profile.tag_list.each do |tag| %>

to

<% @user.profile.tag_list.each do |tag| %>

the embedded ruby is printing your each block after it's run, so you're getting results of .each being run as well as the tag