How do I put a variable in a string using javascript

Question

How do I put a variable in a string in JavaScript?

Example:

$(\'#contactForm\').animate({\"marginLeft\": \"+=680px\"}, \"slow\");

I wou

Answer 1

As with most languages that don't have sigals, you can't perform interpolation, you have to concatenate multiple strings.

"foo" + "bar" + "baz"
"foo" + string_var + "baz"
"+=" + string_var + "px"