extract elements using selctor in javascript has id code example

Example 1: javascript get all elements of an id

// You can't
// You can only have 1 instance of an id per document
// You need to use classes instead

var x = document.getElementsByClassName("example");

Example 2: queryselector change alternative

var nome_cognome = document.querySelectorAll('.modal.fade input').forEach((input) => {
	if ( input.classList.contains('.nome-cognome') ) {
		input.addEventListener('keypress', () => {
		    console.log( input.value );
		});
	}
});