task17.js

const guest=["Family","Friends","Neighbor"];

for(var i=0;i<guest.length;i++)
{
    console.log("Hi "+guest[i]+", \n\tyou all are invited to a dinner that is arranged by me at 7pm on this upcoming sunday.\nTHANKYOU. " );
} 

var g4="Fasih";
var g5="Ali";

//start me dalnay k liye
guest.unshift(g4);
guest.push(g5);

//end pe dalne k liye
for(var i=0;i<guest.length;i++)
{
    console.log(" "+guest[i]+" " );
} 

console.log(" You can invite only 2 people. table haven't arrived yet :( " );

for(var i=0;i!=guest.length && guest.length!=2;i++)
{
var popped = guest.pop();
    console.log("sorry you cannot invite "+  popped+ " them to dinner <br>");
}

for(var i=0;i<guest.length;i++)
{
    console.log(" "+guest[i]+" you are still invited.  " );
} 
//making it empty
for(var i=0;i!=guest.length && guest.length!=0;)
{
    guest.pop();
}
//remaining guests
if(0==guest.length)
{
    console.log(" List is empty. ");
}