Do: inside a parenthesis

Questions & Help Questions
1

I just found out code like this in phoenix html source code.

def button(opts, do: contents) do
    button(contents, opts)
end

What is that do: contents ?? If i want to use this api, as per the doc, I can do button("hello", to: "/world"). So I am sure that do: contents is not keyword list.

2

It is definitely a keyword list. This handles the following syntax:

<%= button(to: path) do %>
 <more html here>
<% end %>
3

There’s a second function clause handling button("hello", to: "/world").

4

hmm, i didnt find that in the doc.

Thanks, that clears it up

5

i have question that is not related with this question.

Is there a way to disable the button?

6

button "Button", disabled: true