Since Whatsap Doesnt have an Option to Export contacts in a group, and they only display username, and status, exporting contacts out of one group is straneous, so i made this

WhatsDom.js

var groupList = document.getElementsByClassName("infinite-list-viewport")[0];
var contactList = groupList.getElementsByClassName("infinite-list-item");
var users = [];

for(var cc = 0; cc < contactList.length; cc++){
	var name = contactList[cc].getElementsByClassName("chat-title")[0].getElementsByTagName("span")[0].getAttribute("title");
	var contactDOM = contactList[cc].getElementsByClassName("chat-title")[0].getAttribute("data-reactid");

	var reallNumber = contactDOM.replace(".0.0:$main.3.2.$=10.1:1.2.1:1.0.0.$", "");
	reallNumber = reallNumber.substr(0, reallNumber.indexOf("@c=1us")); 


    users.push({name, reallNumber});

    console.log("User : "+name+",  	Number : "+reallNumber);
};