How to hide field in EditForm.aspx with Javascript (JS link)

you can refer these below links for JS link
1- link1
2- link2

1] Copy below code in .js file.

<script type="text/javascript">

  ExecuteOrDelayUntilScriptLoaded(init,'sp.js');

  var currentUser;

  function init(){

  this.clientContext = new SP.ClientContext.get_current();

  this.oWeb = clientContext.get_web();

  currentUser = this.oWeb.get_currentUser();

  this.clientContext.load(currentUser);

  this.clientContext.executeQueryAsync(Function.createDelegate(this,this.onQuerySucceeded), Function.createDelegate(this,this.onQueryFailed));

  }

  function onQuerySucceeded() {

  var currentUserName= currentUser.get_loginName();

  $("input[Title='Employee Name']").val(currentUser.get_loginName().split('\\')[1]);

 $("input[Title='Employee Name']").attr("readonly",true);

  if(!currentUser.get_isSiteAdmin())

  {

  $("span table tr td nobr").filter(function() {

  return $(this).text() === "Order Status";

  }).closest("tr").remove();

  $("span table tr td nobr").filter(function() {

  return $(this).text() === "Admin Comment";

  }).closest("tr").remove();

  }

  }

  function onQueryFailed(sender, args) {

  alert('Request failed. \nError: ' + args.get_message() + '\nStackTrace: ' + args.get_stackTrace());

  }

 

</script>

2] Placed .js file in style library

3] Refer .JS in CEWP.

** How to get value from People editor in sharepoint

Refer Link

<script src="http://code.jquery.com/jquery-1.7.2.min.js" type="text/javascript"></script>

<script type="text/javascript">

  ExecuteOrDelayUntilScriptLoaded(init,'sp.js');

  var currentUser;

  var dptHOD;

  function init(){

  this.clientContext = new SP.ClientContext.get_current();

  this.oWeb = clientContext.get_web();

  currentUser = this.oWeb.get_currentUser();

 

  var _PeoplePicker = $("div[title='DeptHOD']");

  var _PeoplePickerTopId = _PeoplePicker.attr('id');

  var _PeoplePickerOject = SPClientPeoplePicker.SPClientPeoplePickerDict[_PeoplePickerTopId];

  _PeoplePickerOject.AddUnresolvedUserFromEditor(true);

  var users = _PeoplePickerOject.GetAllUserInfo();

  var user = users[0];

  dptHOD = user["DisplayText"];

 

  this.clientContext.load(currentUser);

  this.clientContext.executeQueryAsync(Function.createDelegate(this,this.onQuerySucceeded), Function.createDelegate(this,this.onQueryFailed));

  }

  function onQuerySucceeded() {

  var currentUserName= currentUser.get_title();

  // $("input[Title='DeptHOD']").val(currentUser.get_loginName().split('\\')[1]);

  // $("input[Title='DeptHOD']").attr("readonly",true);

  // alert(currentUserName);

  // alert(dptHOD);

 

  if(currentUserName != dptHOD)

  {

  $("span table tr td nobr").filter(function() {

  return $(this).text() == "RequiredDocument";

  }).closest("tr").remove();

  }

  }

  function onQueryFailed(sender, args) {

  alert('Request failed. \nError: ' + args.get_message() + '\nStackTrace: ' + args.get_stackTrace());

  }

</script>