Question

This is my code and in this i wanna call a java script function on some condition like if a = 1 than call hi() function and a = 2 than call hello() function

<%= f.collection_select :ser_id, @ser, :id, :name, :prompt => true -%>

Javascript function are

function hi()
{
alert("hi");
}

function hello()
{
alert("hello");
}

So now give me some idea that how can i call these to function according to given condition.

Answer 1

Try :

<% fun_name = "" %>
<% fun_name = (a==1 ? "eval('hi()')" : "eval('hello()')") if a==1 || a==2 %>
<%= f.collection_select :ser_id, @ser, :id, :name, :prompt => true, {:onchange => fun_name } -%>