How to use route in Javascript

I want to use route in javascript but I get an error Route [product.like + productid] not defined. is there any way I can use route instead ?

Ajax

 $.ajax({
        method: 'post',
        url: '',
        data: {
            'user_id': userid,
            'product_id': productid,
        },

Route

  Route::post('product/like/{id}', ['as' => 'product.like', 'uses' => 'LikeController@likeProduct']);

via Chebli Mohamed