Format input value in Angularjs

Question

I\'m trying to write a directive that automatically formats a number in the but the the model isn\'t formatted. Getting it to work is fine, on lo

Answer 1

Small edit to Maxim Shoustin's answer below as per the answer to this question: AngularJS formatter - how to display blank instead of zero

Only change is to ensure that the input is blank rather than zero on the deletion of the last number:

   ctrl.$parsers.unshift(function (viewValue) {
        console.log(viewValue);
        if(viewValue){
            var plainNumber = viewValue.replace(/[^\d|\-+|\.+]/g, '');
            elem.val($filter('number')(plainNumber));
            return plainNumber;
        }else{
            return '';
        }
    });

http://jsfiddle.net/2n73j6rb/