javascript - Evaluate instance variable (defined in controller), from within a test.js.erb view -

javascript - Evaluate instance variable (defined in controller), from within a test.js.erb view -

how can evaluate instance variable within javascript view (for utilize ajax process)?

i conditional evaluation (in test.js.erb file) of instance variable defined in controller method.

controller method:

def test @var = 100 end

.js view:

if (<%= @var=100 %>) { alert("var: " + <%= @var %>); } else { alert("failed"); }

do need build entire conditional check within erb tags?

if (<%= @var %> === 100 ) {...}

javascript ruby-on-rails ruby-on-rails-3