handlebars.js - Handlebars array access with dynamic index -

how can access array element inside handlebars template using variable instead of hardcoded value? need like:

{{#each condition in conditions}}     {{app.ops.[condition.op].name}} {{/each}}

at moment doesn't give me parse error on runtime doesn't return me nothing. if this:

{{app.ops.[1].name}}

it works it's not i'm looking for

the lookup helper allows dynamic parameter resolution using handlebars variables. useful resolving values array indexes.

using lookup, example written as

{{#each condition in conditions}}     {{#with (lookup ../app.ops condition.op)}}         {{name}}     {{/with}} {{/each}}

(note without knowledge of structure of data, i'm making assumption location of app.ops.)

Live