JSFiddle - React, Tailwind, and code Playground

HTML

<div ng-app="myawesomeapp">
    test: <input restrict-input="^[0-9-]*$" maxlength="20" type="text" class="test" />
</div>

JavaScript

;(function(){
	var app = angular.module('myawesomeapp',[])
    .directive('restrictInput', [function(){
        
        return {
            restrict: 'A',
            link: function (scope, element, attrs) {
                var ele = element[0];
                var regex = RegExp(attrs.restrictInput);
                var value = ele.value;
                
                ele.addEventListener('keyup',function(e){
                    if (regex.test(ele.value)){
                        value = ele.value;
                    }else{
                        ele.value = value;
                    }
                });
            }
        };
    }]);    
}());