Archive everything in Google Voice (Classic) - Web

gistfile1.txt

(()=>{
  function select() {
    document.getElementsByClassName('jfk-checkbox-checkmark')[0].click()
  };

  function archive() {
    function triggerMouseEvent(node, eventType) {
      let clickEvent = document.createEvent('MouseEvents');
      clickEvent.initEvent(eventType, true, true);
      node.dispatchEvent(clickEvent);
    }
    let node = document.getElementsByClassName('gc-appbar-buttons-left')[0].childNodes[1];
    triggerMouseEvent(node, "mouseover");
    triggerMouseEvent(node, "mousedown");
    triggerMouseEvent(node, "mouseup");
  };

  function go() {
    setInterval(() => {
      select();
      setTimeout(() => {
        archive();
      }, 700)
    }, 2500);
  }
  go();
})()

Go to https://www.google.com/voice/b/0#inbox (make sure you're in Classic).
Open dev tools (F12).
Paste above block.