Question

Is there a way to render a html.erb partial as a one line of string?

I am trying to render a _foo.html.erb partial inside a javascript, such that I can use the whole html document as a string variable.

I have tried the following code:

var foo = "<%= render :partial => "foo" %>";

And inside _foo.html.erb, let’s say I have the following:

<h1>Hello</h1>
<p>World</p>

This way will give me a syntax error in javascript because there is CRLF in the partial.
But if I write code like…

<h1>Hello</h1>" +
"<p>World</p>

Now, it’s not an error in javascript.
I can do the latter way, but it is a disaster if the partial contains a lot of lines of code with ruby script.

Would there be any alternative way?

Thanks in advance.

Answer 1

Use escape_javascript function:

var foo = "<%= escape_javascript(render :partial => 'foo') %>";