javascript - Use a variable as name to access nested elements of another array -

i each-loop array build in helper:

template.article.helpers({     section: function() {         return [             {type: 'cars', sectiontitle: 'cars'},              {type: 'vegetables', sectiontitle: 'vegetables'}         ];     }, }); 

the data articles comes router:

router.route('/article/:_id', {     name: 'article',     data: function() {         return {             article: articles.findone({ _id: this.params._id })         }     }    }); 

but want access subelement of article type of helper. in example each loop done 2 times: first want use ../article.cars , ../article.vegetable. hope understand problem. want name of subelement helper type:

<template name="article">     {{#each section}}         <h1>{{this.sectiontitle}}</h1>          <ul>         {{#each ../article.type}} <!-- should '../article.cars' , '../article.vegetable' -->             <li>{{this.title}}</li>         {{/each}}         </ul>     {{/each}} </template> 

i want use content of type variable name. if type 'cars', want use ../articles.cars'. likearticles['cars']which result ofarticles[type]. in meteor writing not possible. andarticles.type` different.

just use helper:

s: function(article) {     return article[this.type]; } 

and send argument spacebar:

{{#each s ../article}}