Set focus on first invalid input in AngularJs form

Question

I\'ve read several articles and StackOverflow questions relating to the setting of focus in AngularJs.

Unfortunately all the examples that I have read assume that th

Answer 1

    .directive('accessibleForm', function () {
        return {
            restrict: 'A',
            link: function (scope, elem) {
                // set up event handler on the form element
                elem.on('submit', function () {
                    // find the first invalid element
                    var firstInvalid = elem[0].querySelector('.ng-invalid');
                    if (firstInvalid && firstInvalid.tagName.toLowerCase() === 'ng-form') {
                        firstInvalid = firstInvalid.querySelector('.ng-invalid');
                    }
                    // if we find one, set focus
                    if (firstInvalid) {
                        firstInvalid.focus();
                    }
                });
            }
        };
    })