reduceの中でrecordの'種別'が'欠勤'じゃない時だけ取得日数を足す

test.js

(function () {
  "use strict";
  kintone.events.on([
    'app.record.edit.submit'
  ], function (event) {
          
    return new kintone.Promise(function(resolve){
      RelatedRecordsFieldManager.prototype.getFieldProperties().then(function(){
        (new RelatedRecordsFieldManager('取得履歴')).getRecords(event.record).then(function(records){
            event.record.totalAmount2.value = records.reduce(function (sum, record) {
                if (record.種別.value !== '欠勤') {
                    return sum + Number(record.取得日数.value);        
                } else {
                    return sum
                }
            }, 0);
            console.log(event);
          resolve(event);
        });
      });
    });
  });
}());