handlebars.js"each"循环在另一个"each"循环3中

Question

假设我想构建一个动态表.我如何在每个内部运行每个.如果唯一代表当前项目的变量是this.

   {{#each by_width}}
       {{#each by_height}}
          {{this}} // how do refer to this from the outer loop?
       {{/each}}
   {{/each}}

Answer 1

您可以../用来访问Handlebars模板中的父级:

{{#each by_width}}
    {{#each by_height}}
       w: {{../this}}
       h: {{this}}
    {{/each}}
{{/each}}

那当然假设它by_height位于每个元素的内部by_width,如果它们都处于顶层,那么你需要另一个元素../:

{{#each by_width}}
    {{#each ../by_height}}
       w: {{../this}}
       h: {{this}}
    {{/each}}
{{/each}}

演示:http://jsfiddle.net/ambiguous/PNTXw/