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var searchByActive = true;
var periodList = [
  {
    name: 'one',
    active: true
  },
  {
    name: 'two'
    active: false
  }
];

var tempPeriodList = periodList.filter(function(periodItem) {
  // instead
  return searchByActive === true ? periodItem.active === true : periodItem.active === false;
  // nicer
  return searchByActive === periodItem.active;
});