sibiraj-s

// Use HTMLInputElement for text input
const nativeTextAreaValueSetter = Object.getOwnPropertyDescriptor(window.HTMLTextAreaElement.prototype, 'value').set
nativeTextAreaValueSetter.call(inputRef, newTextareaValue)
const inputEvent = new Event('input', { bubbles: true })
inputRef.dispatchEvent(inputEvent)

sibiraj-s

// include jQuery for this script to work 
// or 
// replace with vannila javascript where needed

var d = document.documentElement, b = document.body;
var scrollTop = d.scrollTop || b.scrollTop;
var scrollHeight = d.scrollHeight || b.scrollHeight;

var h = document.documentElement,
    b = document.body,