I am trying to send text- messages on WhatsApp with javascript?

Question

I am trying to send text messages on whatsapp web version on chrome. (www.web.whatsapp.com)

This is the code:

Answer 1

As Khalid Lafi said, this is the correct script. His code does will return an error when executing

dispatch(document.querySelector("#compose-input div"), "textInput", "hello!");

This is because you should use "input.div" instead of "#compose-input div". The following script is working for me.

function dispatch(target, eventType, char) {
    var evt = document.createEvent("TextEvent");    
    evt.initTextEvent (eventType, true, true, window, char, 0, "en-US");
    target.focus();
    target.dispatchEvent(evt);
}


dispatch(document.querySelector("div.input"), "textInput", "hello!");

function triggerClick() {
var event = new MouseEvent('click', {
  'view': window,
  'bubbles': true,
  'cancelable': true
 });
document.querySelector(".icon.btn-icon.icon-send").dispatchEvent(event);
}

triggerClick();

Hope this helps.