JS数组返回去重后数据的方法解析

function removeRepeat(data) {var temp = "";var mainData = [];for (var i = 0; i < data.length; i++) {if (!data[i].parent) {temp = data[i];for (var j = 0; j < data.length; j++) {if (temp.DeliveryType == data[j].DeliveryType) {data[j].parent = true;}}mainData .push(data[i])}}return mainData ;}