<!doctype html> <html> <head lang="en"> <meta charset="utf-8"> <title>www.jb51.net angularjs字数提示</title> </head> <style> *{ margin:0; padding:0; } input,button,textarea,select{ outline:none; } textarea{ resize:none; } .content{ width:350px; height:150px; font-size:18px; text-indent:40px; overflow-y: hidden; overflow-x: hidden; } .content:hover{ border:1px solid #00ffff; cursor:pointer; } .top{ vertical-align:top; } .fontcolor { color:#eee; } .tablet td{ margin-right:20px; } </style> <body ng-app="myapp" ng-controller="mycontrol"> <table class="tablet"> <tr> <td class="top">退货说明 :</td> <td><textarea id="sayid" class="content" ng-model="say" ng-keyup="changetext()"></textarea></td> </tr> <tr> <td></td> <td class="fontcolor">你还可以输入{{textlength}}字</td> </tr> </table> </body> <script type="text/javascript" src="../js/jquery-1.8.3.js"></script> <script type="text/javascript" src="../js/angular.min.js"></script> <script type="text/javascript"> var app = angular.module('myapp',[]); app.controller('mycontrol',function($scope){ $scope.textlength = 10; $scope.changetext = function(){ var length = $(#sayid).val().length; //使用$scope.say.length的时候，输入空格的时候没有计算空格长度。 console.log(length); $scope.textlength = 10 - length; if($scope.textlength<=0){ $scope.textlength = 0; $(#sayid).val($scope.say.slice(0,10)); } } }); </script> </html>
相信看了本文案例你已经掌握了方法，更多精彩请关注其它相关文章！
推荐阅读：
vue判断用户是否登录
通过正则取得最长连续子串
以上就是angularjs做出输入框字数限制提醒的详细内容。