angular.js - angularjs如何获取表单textarea的value的length

Question

angularjs如何获取表单textarea的value的length,想用这个length的长度来判断另一个p显示与否

<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