Fill and submit textarea programmatically in javascript

Question

I\'m trying to automate the submission of replies to my Steemit posts using plain JS or Jquery.

I used the javascript code below but the button remains disabled and

Answer 1

After trying everything, I found out that the problem seems to be a bug in React on triggering onchange for textareas.

More info on the bug

There is a workaround..

Solution:

function setNativeValue(element, value) {
  const valueSetter = Object.getOwnPropertyDescriptor(element, 'value').set;
  const prototype = Object.getPrototypeOf(element);
  const prototypeValueSetter = Object.getOwnPropertyDescriptor(prototype, 'value').set;

  if (valueSetter && valueSetter !== prototypeValueSetter) {
    prototypeValueSetter.call(element, value);
  } else {
    valueSetter.call(element, value);
  }
}

var textarea = document.getElementsByTagName('textarea')[0];
setNativeValue(textarea, 'My automated comment here');
textarea.dispatchEvent(new Event('input', { bubbles: true }));