angular.js - How to get the length of the value of the form textarea in angularjs

Question

How does angularjs get the length of the value of the form textarea? I want to use the length of this length to determine whether another p is displayed

<p ng-show="">文字长度大于1显示，否则隐藏</p>
<textarea ng-model="test" placeholder="输入文字"></textarea>

Answer 1

You can judge the length directly through $scope.test拿到textarea的value，然后.length.

Answer 2

ng-model has bound the value of textarea to the variable $scope.test, and directly determines the length of $scope.test