在空格键中，如何在迭代{{# each}} 之间输入数据? [英] In Spacebars, how to enter data between iterations {{# each}}?

问题描述

我正在使用 空格键 和 流星 1.2.在{{#each post}}中，具体迭代后如何录入数据.例如在第二次迭代之后.

I'm using Spacebars and Meteor 1.2. In {{#each post}}, how to enter data after a specific iteration. For example after the second iteration.

示例:1º 迭代 |2º 迭代 |数据 |3º 迭代 |4º迭代...

Example: 1º iteration | 2º iteration | data | 3º iteration | 4º iteration ...

推荐答案

首先，将光标转换为数组并添加索引属性.您还需要一个助手来检查相等性(或告诉您何时条件合适以显示不同的内容):

Firstly, convert your cursor to an array and add an index attribute. You're also going to need a helper to check equality (or to tell you when the conditions are right to display something different):

Template.myTemplate.helpers({
  post: function(){
    var cursor = Posts.find({}); // whatever your query is   
    var array = _.map(cursor, function(doc, index) {
      doc.iteration = index + 1; // add an 'iteration' key starting at 1 instead of 0
      return doc;
    });
    return array;
  },
  equals: function(a,b){ // determine equality of a and b for use in spacebars
    return a==b;
  }
});

然后在您的 html 模板中:

Then in your html template:

<template name="myTemplate">
  {{#each post}}
    Title: {{title}}
    {{#if equals iteration 2}} Second iteration {{/if}}
  {{/each}}
</template>

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