Input Elements
<button id="addButton" type="button">Add</button>
<input type="text" id="inputText" />
var textBox = document.getElementById('inputText');
var text = textBox.value;Modify DOM
var paragraph = document.createElement('p');
var textNode = document.createTextNode(text);
paragraph.appendChild(textNode);
document.body.appendChild(paragraph);
document.body.removeChild(paragraph);