把手:使用javascript变量进行索引 [英] Handlebars: using a javascript variable for index

问题描述

所以我希望能够做这样的事情:

So I want to be able to do something like this:

"{{tickets." + index + ".comments.0.account}}"

我希望能够使用javascript变量指定要从中获取数据的数组的索引.目前，这段代码给我一个错误，提示:

I want to be able to specify the index of the array that I am trying to get data from with a javascript variable. Currently this code gives me an error which says:

Expecting 'ID', got 'STRING'

如果有区别的话，我实际上是在Node.js上使用Express-Handlebars.

I am actually using express-handlebars with Node.js if this makes a difference.

推荐答案

创建助手:

Handlebars.registerHelper('getTicketAccount', function(context, i) {
  // Error handling ommitted for brevity
  return context[i].comments[0].account;
});

要使用:

{{getTicketAccount tickets index}}

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