zorn
Ways to avoid unwanted whitespace in Phoenix templates?
I’m generating breadcrumbs in my Phoenix template and the result when I keep the code clean (across many lines and indented) is extra white space and line breaks. This has an adverse effect on the HTML being rendered (extra spaces in front of the crumb text). I can “fix” the issue by compacting my Phoenix template code to a long one liner but this doesn’t feel very elegant. Any other suggestions?
<%= for crumb_info <- @crumbs do %>
<%= if crumb_info == List.last(@crumbs) do %>
<li class="breadcrumb-item active" aria-current="page">
<% else %>
<li class="breadcrumb-item">
<% end %>
<%= if Keyword.has_key?(crumb_info, :link) do %>
<%= link crumb_info[:title], to: crumb_info[:link] %>
<% else %>
<%= crumb_info[:title] %>
<% end %>
</li>
<% end %>
Most Liked
NobbZ
LostKobrakai
def build_breadcrumb(crumbs) do
for crumb_info <- crumbs do
active_class = if crumb_info == List.last(crumbs), do: "active", else: ""
text =
if Keyword.has_key?(crumb_info, :link) do
link(crumb_info[:title], to: crumb_info[:link])
else
crumb_info[:title]
end
content_tag(:li, text, class: "breadcrumb-item #{active_class}")
end
end
Also there are ways n CSS to not render whitespace. E.g. using display: flex.
2
Last Post!
silverdr
Same here. In my case I render into text/plain and want to prevent conditionals like <%= if @my_condition do %> from rendering as empty lines, breaking the output formatting.
0
Popular in Questions
Hi,
I need to transform a list of numbers into a map where the keys are the indexes and the values are the original values of the list. ...
New
I am trying to figure out how Mix knows whether the environment is test, dev, or prod – where is this set?
Thanks.
New
Original source of discussion: This topic on the Pragmatic Programmers’ Functional Web Development with Elixir, OTP, and Phoenix forum.
...
New
In templates/appointment/index.html.eex:
<%= for appointment <- @appointments do %>
<tr>
<td><%= appoi...
New
Currently suffering from paralysis by [HTTP client] analysis. This is rather unusual in Elixirland as there tends to be consensus on the ...
New
We have an ECS cluster with 4 services, where each task joins a single cluster, via discovery ECS discovery service.
Currently when I de...
New
In the code below, if the create action is not set to accept “extra_key” as an input, it errors out with a message shown above. Is there ...
New
Other popular topics
Hi,
I am new to Elixir. I am trying to use the DateTime component to insert a date into MySQL however the there seems to be no way to fo...
New
What’s the safe way to decode a JSON string into a struct? I want to avoid calling String.to_atom. Jason.decode can give me a map with st...
New
If I have a post route which an argument:
post /my_post_route/:my_param1, MyController.my_post_handler
How would get the post params ...
New
Hello again - after a longish gap I’ve decided I really must dig into Elixir and see what’s been happening here - so I have a few questio...
New
What is the idiomatic way of matching for not nil in Elixir?
E.g.,
First way:
defp halt_if_not_signed_in(conn, signed_in_account) when...
New
Posting this to see if we can make things easier for people to get into Neovim. If you use Neovim and have a favourite distro please let ...
New
Categories:
Sub Categories:
Forums
Popular Tags
- #ecto
- #liveview
- #troubleshooting
- #learning-elixir
- #deployment
- #library
- #erlang
- #testing
- #genserver
- #mix
- #absinthe
- #remote-other
- #otp
- #plug
- #how-to-question
- #macros
- #postgres
- #channels
- #elixirconf
- #exunit
- #discussion
- #code-sync
- #javascript
- #podcasts
- #onsite
- #dialyzer
- #docker
- #authentication
- #umbrella
- #full-time-contract
- #podcasts-by-brainlid
- #ecto-query
- #elixir-ls
- #phoenix_html
- #iex
- #blog-post
- #graphql
- #genstage
- #ai
- #websockets
- #supervisor
- #elixirconf-us
- #advent-of-code
- #distillery
- #processes
- #forms
- #api
- #metaprogramming
- #security
- #hex









