I have some weird peoples as friends from college, who loves to keep poking me on FB. This is for those MFs

pokeback.js

class Poke {
  constructor(interval) {
    if (interval) this.INTERVAL = interval;
    else this.INTERVAL = 10000;
    
    this.timer = null;
  }

  set interval(seconds) {
    if (!seconds || typeof seconds !== 'number') throw new Error('Interval must be in number of seconds');
    this.INTERVAL = seconds * 1000;
  }

  start() {
    if (this.timer) return;
    this.timer = setInterval(this.poker, this.INTERVAL);
  }
  
  stop() {
    if (!this.timer) return;
    clearInterval(this.timer);
  }
  
  poker() {
    console.table(['Poke Back']);
    const { singleNodeValue: pokeBtn } = document.evaluate("//span[contains(text(),'Poke Back')]", document, null, XPathResult.FIRST_ORDERED_NODE_TYPE, null);
    pokeBtn?.click();
  }
}

const pokeBack = new Poke();
pokeBack.start();