membership.js

var showCopy = (text) => {
  let div = document.createElement('DIV');
  let btn = document.createElement('BUTTON');
  btn.textContent = 'Copy';
  btn.style.border = 'solid 1px #aaa';
  btn.style.background = '#fefefe';
  btn.style.padding = '1em 3em';
  btn.style.fontSize = '16px';
  btn.addEventListener('click', (e)=>{
    let textarea = document.createElement('TEXTAREA');
    document.body.appendChild(textarea);
    textarea.value = text;
    textarea.select();
    document.execCommand('copy');
    div.remove();
  });
  div.style.position = 'fixed';
  div.style.background = '#fff';
  div.style.top = 0;
  div.style.left = 0;
  div.style.right = 0;
  div.style.bottom = 0;
  div.style.zIndex = 9999;
  div.style.display = 'flex';
  div.style.alignItems = 'center';
  div.style.justifyContent = 'center';
  div.style.textAlign = 'center';
  div.appendChild(btn);
  document.body.appendChild(div);
}

var url = '/mls/mbr/services/report/member-list?lang=eng';
$.ajax({url}).done((people)=>{
  
  var str = people.map((p) => {
    return `${p.name}\t${p.age}`;
  }).join('\n');

  showCopy(str);
  
});