placeholder js
// Can be done by utilising the getAttribute() Method. var placeholder = document.getElementById("demo").getAttribute("placeholder"); console.log(placeholder); // Ref: https://developer.mozilla.org/en-US/docs/Web/API/Element/getAttribute
Source: stackoverflow.com
set placeholder javascript
document.querySelector('.gfield_list_cell.gfield_list_72_cell3 input').setAttribute('placeholder','$');
Source: stackoverflow.com