Input field active label toggle does not work when placeholder set to empty string

[epanfile]

• Materialize Release: 1.0.0-alpha.3
• Chrome Version 64.0.3282.140 (Official Build) (64-bit)
• Windows 10 desktop

In utility function M.updateTextFields when setting label to active, placeholder is checked for null, which causes unpredictable input field animations if placeholder is undefined or empty string. Similarly, in the on blur event on input fields placeholder is checked just for null. The following lines of code are problematic:

if (element.value.length > 0 || $(element).is(':focus') || element.autofocus || $this.attr('placeholder') !== null) { $this.siblings('label').addClass('active'); }

and

if ($inputElement[0].value.length === 0 && $inputElement[0].validity.badInput !== true && $inputElement.attr('placeholder') === null) { selector += ", label"; }

Can you please look into adding a more complete verification for "empty" placeholder?