script var numbers = [1, 2, 3, 4, 5]; var sum = _.reduce(numbers, function(acc, num) { return acc + num; }, 0); if (_.isUndefined(sum)) { } else { } script <script src="underscore.js"></script> var renderedTemplate = template(person); document.getElementById('container').innerHTML = renderedTemplate; script var numbers = [1, 2, 3, 4, 5]; _.each(numbers, function(num, index) { });


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