Run results for: loop vs some

Run details:

User agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.11; rv:50.0) Gecko/20100101 Firefox/50.0

Browser: Firefox 50

Operating system: Mac OS X 10.11

Device Platform: Other

Date tested: 7 years ago

Test name	Executions per second
For Loop	739998.4 Ops/sec
Some	20373.0 Ops/sec

Script Preparation code:

function validatePersonSome(person, isCmsgOrgs, selectedOrgs) {
  if (isCmsgOrgs) {
    // If a person has service_groups it will check them against the org SERVICE_GROUP_IDS, if a match is found that person will be selectable
    if (person.service_groups.length) { // eslint-disable-line mp-camelcase
      return person.service_groups.some(function(service_group) { // eslint-disable-line mp-camelcase
        return selectedOrgs.some(function(org) {
          return org.SERVICE_GROUP_IDS.some(function(org_service_group) { // eslint-disable-line mp-camelcase
            return org_service_group.SERVICE_GROUP_ID === service_group.id; // eslint-disable-line mp-camelcase
          });
        });
      });
    } else {
      return false;
    }
  }
  // If no orgs contain SERVICE_GROUP_IDS, only those persons with no service_groups will be selectable
  else {
    return person.service_groups.length === 0;
  }
}

function validatePersonLoop(person, hasCmsgOrgs, selectedOrgs) {
  var isValid = false;

  if (hasCmsgOrgs) {
    // If a person has service_groups it will check them against the org SERVICE_GROUP_IDS, if a match is found that person will be selectable
    if (person.service_groups.length) {
      var orgServiceGroupIds = {};
      var org;

      for (var i = 0; i < selectedOrgs.length; i++) {
        org = selectedOrgs[i];
        for (var j = 0; j < org.SERVICE_GROUP_IDS.length; j++) {
          orgServiceGroupIds[org.SERVICE_GROUP_IDS[j].SERVICE_GROUP_ID] = true;
        }
      }

      for (var i = 0; i < person.service_groups.length; i++) {
        if (orgServiceGroupIds[person.service_groups[i].id]) {
          isValid = true;
          break;
        }
      }
    }
  }
  // If no orgs contain SERVICE_GROUP_IDS, only those persons with no service_groups will be selectable
  else {
    isValid = person.service_groups.length === 0;
  }

  return isValid;
}

var person = {};
person.service_groups = [];
for (var i = 0; i < 1000; i++) {
  person.service_groups.push({
    id: i
  });
}


var selectedOrgs = [];
selectedOrgs.push({
	"ORGANIZATION_ID": "12345",
  	"ORG_NAME": "some_name",
  	"SERVICE_GROUP_IDS": [{
      service_group_id: 1
    }]
});

Tests:

For Loop
validatePersonLoop(person, true, selectedOrgs);
Some
validatePersonSome(person, true, selectedOrgs);

Run results for: loop vs some

Tests for loops vs array.some

For Loop

Some