underscore reduce demo

by Gismo Ranas

HTML

<script src="http://documentcloud.github.com/underscore/underscore-min.js"></script>

JavaScript

var data = _.range(10);
var sum = _(data).reduce(function (memo, i) {
    return memo + i
});
//alert(sum);

var myData = new Array(['2013-01-22', 0], ['2013-01-29', 0], ['2013-02-05', 0], ['2013-02-12', 0], ['2013-02-19', 0], ['2013-02-26', 0], ['2013-03-05', 0], ['2013-03-12', 0], ['2013-03-19', 0], ['2013-03-26', 0], ['2013-04-02', 21], ['2013-04-09', 2]);
var sumMyData = _(myData).reduce(function (memo, i) {
    return memo + i[1]
}, 0);
//alert(sumMyData);