check if object is a textbox - javascript

Question

I understand that we can use (javascript)

if (typeof textbox === "object") { }  

but are there methods which will allow me to ensure that the object is a textbox?

Answer 1

var isInputText = obj instanceof HTMLInputElement && obj.type == 'text'; 

Answer 2

As of 2016, use this:

function isTextBox(element) {     var tagName = element.tagName.toLowerCase();     if (tagName === 'textarea') return true;     if (tagName !== 'input') return false;     var type = element.getAttribute('type').toLowerCase(),         // if any of these input types is not supported by a browser, it will behave as input type text.         inputTypes = ['text', 'password', 'number', 'email', 'tel', 'url', 'search', 'date', 'datetime', 'datetime-local', 'time', 'month', 'week']     return inputTypes.indexOf(type) >= 0; }