How to use variable in javascript escape_javascript rails?

Question

I need to pass a variable js to rails, as a parameter, but it is not working. Here is my code:

#function js
function load_custom_fields(){
  var id = $("MY_SELECT").val();
  $(".productHere").html("<%= escape_javascript(render :partial =>'my_partial', :locals => { id:id} ) %>");

}

Will this work? $(".productHere").html("<%= escape_javascript(render :partial =>'my_partial', :locals => { id: " + id + "} ) %>"); — Abhi
– Abhi, Commented Aug 5, 2016 at 17:44

Jorawar Singh · Accepted Answer · 2016-08-05 17:20:36Z

1

From

"<%= escape_javascript(render :partial =>'my_partial', :locals => { id:id} ) %>"

To

"<%= escape_javascript(render :partial =>'my_partial', :locals => { id:"+id+"} ) %>"

answered Aug 5, 2016 at 17:20

Jorawar Singh

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1 Comment

Weliton José Over a year ago

this came as a string, answer = + id +

Fabrício · Accepted Answer · 2020-05-04 22:58:33Z

1

A simple solution is to add a placeholder inside the escape_javascript and then replace it with your JavaScript variable, for example:

var id = $("MY_SELECT").val();
$(".productHere").html("<%= escape_javascript(render :partial =>'my_partial', :locals => { id: '_ID_'} ) %>".replace("_ID_", id);

answered May 4, 2020 at 22:58

Fabrício

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