TypeError：无法读取未定义的属性“ nodeName”

Question

I'm having this message in an angular app after submitting the form:

TypeError: Cannot read property 'nodeName' of undefined (chrome dev console tells me the error is in "elem.parent()[0].nodeName" (line 2)

while (!angular.equals(elem.parent(), $document) && !angular.equals(elem[0], $document[0].documentElement)) {
    if (['form', 'ngForm','userForm'].indexOf(attrs.$normalize(angular.lowercase(elem.parent()[0].nodeName))) > -1) {
        isValid = true;
        break;
    }
    formElem = elem.parent();
}

Could someone help me on this?

Answer 1

Try debugging the process to understand what iterElem.parent()[0] contains. If you want to verify that the property is not undefined, try using: angular.isUndefined(iterElem.parent()[0].nodeName) .