Javascript 量角器：按属性查找元素
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Protractor: Find Element by Attribute
提问by matthias
I have the following element i need to find for testing:
我需要找到以下元素进行测试：
<div class="alert alert-danger" role="alert" ng-show="notValid">Zugangsdaten eingeben</div>
How can i find this element to check visibility (ng-show)?
我怎样才能找到这个元素来检查可见性（ng-show）？
The ng-show attribute and value are the only attribute and value to identify the element uniquely. The class is used in many elements...
ng-show 属性和值是唯一标识元素的唯一属性和值。该类用于许多元素...
I am searching for something like:
我正在寻找类似的东西：
var notValid = element(by.Attribute('ng-show', 'notValid');
回答by alecxe
You can find it by.css():
你可以找到它by.css()：
element(by.css('div[ng-show=notValid]'));
$('div[ng-show=notValid]'); // shortcut for the above expression
Or, by.xpath():
或者，by.xpath()：
element(by.xpath('//div[@ng-show="notValid"]'));
