js字符串插值在haml中失败：javascript过滤器

Question

In a haml and jquery environment, the following haml fails:

#result

:javascript
  var foo = "result"
  $(`#${foo}`).text('some text')

Other tests show that string interpolation in a javascript filter like this:

#result

:javascript
  var foo = "qux"
  $('#result').text(`#${foo}`)

fails when '$' is immediately preceded by '#'. But it succeeds when there is a whitespace between!

How can I implement string interpolation within the javascript filter when I need '#' to precede the embedded value?

thanks in advance for any insight you can offer.

[Edit] of course @Barmar's concatenation suggestion is a good workaround. I also just found that this is reported as issue# 975 in the haml git repo

Answer 1

Try just concatenating the string, as # is special in HAML. $('#' + foo)