code: function(input, eventType) {
  		// We'd like to prevent autocomplete on the input datalist field
  		input.setAttribute('autocomplete', 'off');
  
  		// WAI ARIA attributes
  		input.setAttribute('role', 'textbox');
  		input.setAttribute('aria-haspopup', 'true');
  		input.setAttribute('aria-autocomplete', 'list');
  		input.setAttribute('aria-owns', input.getAttribute('list'));
  
  		// Bind the keyup event on the related datalists input
  		if (eventType === 'focusin') {
  			input.addEventListener('keyup', inputInputList);
  
  			input.addEventListener('focusout', changesInputList, true);
  
  			// As only EDGE doesn't trigger the input event after selecting an item via mouse, we need to differentiate here
  			if (isGteIE10 || (isEDGE && input.type === 'text')) {
  				input.addEventListener('input', inputInputListIE);
  			}
  		} else if (eventType === 'blur') {
  			input.removeEventListener('keyup', inputInputList);
  
  			input.removeEventListener('focusout', changesInputList, true);
  
  			// As only EDGE doesn't trigger the input event after selecting an item via mouse, we need to differentiate here
  			if (isGteIE10 || (isEDGE && input.type === 'text')) {
  				input.removeEventListener('input', inputInputListIE);
  			}
  		}
  
  		// Add class for identifying that this input is even already being polyfilled
  		input.className += ' ' + classNameInput;
  	}
docs: Prepare the input