Example of using Handlebars lookup helper

Question

Handlebars has a built-in helper called lookup. The documentation is not very clear about how it works. Could I see an example?

Answer 1

Sure, past me! Here's an example from your future.

Suppose you have an object or array obj and a variable field and you want to output the value of obj[field], you would use the lookup helper {{lookup obj field}}.

The code defining the helper is simply:

function(obj, field) {
  return obj && obj[field];
}