How to check if current user in particular group

[Basina Akash]

How to check if current user is in particular group if he is not in that group he will be added to that group 

[Anamika Gupta]

var person = gs.getUser();

if(person.isMemberOf('Group Name')){
gs.print('yes');
}else{
gs.print('no');
var grMember = new GlideRecord('sys_user_grmember'); // insert the record in the group member table, Create Membership
grMember.initialize();
grMember.user = person;
grMember.group ='sys_id of Group';
grMember.insert();
}

Tell me if it is helpful and Let me know if you have other query 🙂