MemberPress: Change Username Field’s Placeholder and/or Label of the Field on Login Page

document.addEventListener('DOMContentLoaded', function() {

  	// Select the input element by its id

	var usernameInput = document.getElementById('user_login');

	// Check if the element exists to avoid any potential JavaScript errors

	if (usernameInput) {

		// Change the placeholder text

		usernameInput.placeholder = 'Username or Email'; 

	}

	//below code change Username field on the MemberPress login form

	var usernameLabel = document.querySelector('label[for="user_login"]');

	if (usernameLabel) {

		// Change the label text

		usernameLabel.textContent = 'Username or Email';

	}

});