wa.js

function whatsAppText(t) {

window.InputEvent = window.Event || window.InputEvent;
var d = new Date();
var event = new InputEvent('input', {bubbles: true});

var textbox = document.querySelector('#main > footer > div.block-compose > div.input-container > div.pluggable-input.pluggable-input-compose > div.pluggable-input-body.copyable-text.selectable-text');

textbox.textContent = t;
textbox.dispatchEvent(event);
document.querySelector("button.compose-btn-send").click();}
for(i=1;i<3;i++){
whatsAppText("Hola");}