Handlebars.js - Access object value with a variable key

Question

Looking for a way to access to achieve this:

{{#each someArray}}
  {{../otherObject.[this]}}
{{/each}}

How do I evaluate the value of this and then reference it as a key to my object otherObject?

I have, searched for 2 days. Maybe I'm just awful at googling. — Kevin Wang
– Kevin Wang, Commented Oct 30, 2013 at 2:44
This one from the sidebar is about 90% of the solution. Basically, you have to write our own helper that converts things like {{value_at obj key}} to the JavaScript obj[key]. — mu is too short
– mu is too short, Commented Oct 30, 2013 at 3:07
I've seen that answer, the second one refers to what I'm talking about, and I was hoping for a similar solution because it seems like such an obvious use case. It's hard to believe that handlebars doesn't support this syntax... — Kevin Wang
– Kevin Wang, Commented Oct 31, 2013 at 6:34
Did you find any workaround @KevinWang? I'm stuck on the same issue... — Mathieu
– Mathieu, Commented Sep 25, 2014 at 16:08

Community · Accepted Answer · 2021-09-02 17:00:12Z

18

With lookup: https://handlebarsjs.com/guide/builtin-helpers.html#lookup

{{#each someArray}}
  {{lookup ../otherObject this}}
{{/each}}

edited Sep 2, 2021 at 17:00

CommunityBot

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answered Jan 21, 2016 at 6:54

Mario Negrete

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2 Comments

zavr Over a year ago

best answer that is

theprogrammer Over a year ago

this is printing [object Object]

Fabricio c Zuardi · Accepted Answer · 2014-04-25 22:14:18Z

5

One possible solution with a helper:

/*
{{#each someArrayOfKeys}}
  {{#withItem ../otherObject key=this}}
    {{this}}
  {{/withItem}}
{{/each}}
*/

Handlebars.registerHelper('withItem', function(object, options) {
    return options.fn(object[options.hash.key]);
});

answered Apr 25, 2014 at 22:14

Fabricio c Zuardi

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