DOM

What is getElementById()? It is used to select a single HTML element using its unique id attribute. Returns an Element object if a match is found; otherwise, it returns null. h1 id = " title " > Hello /h1 > let el = document . getElementById ( " title " ); console . log ( el ); Output : h1 id = " title " > Hello /h1 > Changing content : el . textContent = " Hello, JavaScript! " ; el . innerText = " Hi! " ; el . innerHTML = " How " ; Changing Style : el . style . color = " red " ; el . style . ba