javascript - Uncaught Error 意外标记 (

Question

我收到一个错误 Uncaught error uncaught error uncaught token ( in script tag on string with for loop

<script type="text/javascript">
   var offer_foto_index = 'slide_offer_preview_1';
   var slide_offer_preview_ = [];
   var photo_array = <%= @photos.to_json.html_safe %>;
   var offer_foto = {
     for(var i = 0; i < <%= @photos.length %>; i++) {
       slide_offer_preview_[i] = photo_array[i];
     }
   }
</script>

我需要一个 offer_photo 变量，它应该包含数组 slide_offer_preview_1、slide_offer_preview_2、slide_offer_preview_3 等。

我哪里做错了？谢谢!

Answer 1

根据您的评论回答:“...我需要一个 offer_photo 变量。它应该包含 slide_offer_preview_1、slide_offer_preview_2 等数组。”

<script type="text/javascript">
   var offer_foto_index = 'slide_offer_preview_1';
   var slide_offer_preview_ = [];
   var photo_array = <%= @photos.to_json.html_safe %>;
   var offer_foto = {};
   for(var i = 0; i < <%= @photos.length %>; i++) {
     offer_photo['slide_offer_preview_' + i] = photo_array[i];
   }
</script>

或者如果您需要它位于“offer_foto”对象中的一个数组中:

var offer_foto = {};
offer_foto.slide_offer_preview_ = [];
for(var i = 0; i < <%= @photos.length %>; i++) {
  offer_photo.slide_offer_preview_[0] = photo_array[i];
}