CODEWITHSUNDEEP
javascriptarraysember.jshandlebars.js
blackmind
blackmind

Reputation: 1296

Handlebars array length -1

is there a way to get an index of an array within a handlebar template and I want to get the last value in the array and call a . property on it

{{currentRevision.computedRoutingNodes.length-1.numberOfReviewDays}}

computedRoutingNodes is an array of objects

I know i can get an index like

{{currentRevision.computedRoutingNodes.1.numberOfReviewDays}}

but I want to get the last value dynamically

Upvotes: 1

Views: 3201

Answers (2)

undeletable
undeletable

Reputation: 1590

{{currentRevision.computedRoutingNodes.lastObject.numberOfReviewDays}} will work if you're using Ember.js.

Upvotes: 1

Talmid
Talmid

Reputation: 1401

You could use a helper:

Handlebars.registerHelper('propAtLengthRelativeIndex', function (arr, index, prop) {
    return new Handlebars.SafeString(arr[arr.length + ~~index][prop]);
});

And then call it like this:

{{propAtLengthRelativeIndex currentRevision.computedRoutingNodes '-1' 'numberOfReviewDays'}}

Upvotes: 1

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