Setting Default Value to the Person/Group Column in New/Edit form

By using JavaScript the default value for a person or group column can be set. The below are the steps
(i) Add content Webpart
(ii)Inside that put the following script
(This script will fetch the current username and display it in the people picker which is mentioned in the script)

<script type="text/javascript">
ExecuteOrDelayUntilScriptLoaded(GetUserLoginName, "sp.js");
 var context = null;
    var web = null;
    var currentUser = null;
    var currentUserId=''
function GetUserLoginName() {
 context = new SP.ClientContext.get_current();
        web = context.get_web();
        currentUser = web.get_currentUser();
        currentUser.retrieve();
        context.load(web);
        context.executeQueryAsync(onSuccessMethod, onFaiureMethodl);
}
function onSuccessMethod(sender, args) {
        var userObject = web.get_currentUser();
           AddCurrentUserToPP(userObject.get_title());
    }
  
    function onFaiureMethodl(sender, args) {
        alert('request failed ' + args.get_message() + '\n' + args.get_stackTrace());
    }

function AddCurrentUserToPP(LoginName)
{
var pickerNo = 1;
var pp = getPickerImputElement(pickerNo);
if(pp != null)
{
pp.innerHTML = LoginName;
}
}

function getPickerImputElement(pickerNo)
{
var result = '';
var divs = document.getElementsByTagName('DIV');
var j = 0;
for(var i=0; i < divs.length; i++)
{
if(divs[i].id.indexOf('UserField_upLevelDiv') > 0)
{
j++;
if(j == pickerNo)
{
result = divs[i];
break;
}
}
}
return result;
}</script>

(iii) Stop Editing