Javascript should have a means of automatically wrapping quotes around a variable

[brandonscript]

Currently this doesn't work:

{{ var foo=[]; foo.push([[$self.text]]); JSON.stringify(foo); }}

But this does:

{{ var foo=[]; foo.push('[[$self.text]]'); JSON.stringify(foo); }} 

(with quotes around the variable). Can we figure out a way of dynamically adding quotes around variables if the variable is not a bool, int or float?