AngularJS實(shí)現(xiàn)的輸入框字?jǐn)?shù)限制提醒功能示例

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AngularJS實(shí)現(xiàn)的輸入框字?jǐn)?shù)限制提醒功能示例

AngularJS實(shí)現(xiàn)的輸入框字?jǐn)?shù)限制提醒功能示例:本文實(shí)例講述了AngularJS實(shí)現(xiàn)的輸入框字?jǐn)?shù)限制提醒功能。分享給大家供大家參考，具體如下： <!DOCTYPE html> <html> <head lang=en> <meta charset=UTF-8> <title>www.gxlcms.c

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導(dǎo)讀AngularJS實(shí)現(xiàn)的輸入框字?jǐn)?shù)限制提醒功能示例:本文實(shí)例講述了AngularJS實(shí)現(xiàn)的輸入框字?jǐn)?shù)限制提醒功能。分享給大家供大家參考，具體如下： <!DOCTYPE html> <html> <head lang=en> <meta charset=UTF-8> <title>www.gxlcms.c

本文實(shí)例講述了AngularJS實(shí)現(xiàn)的輸入框字?jǐn)?shù)限制提醒功能。分享給大家供大家參考，具體如下：

<!DOCTYPE html>
<html>
<head lang="en">
 <meta charset="UTF-8">
 <title>www.gxlcms.com AngularJS字?jǐn)?shù)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">退貨說(shuō)明 :</td>
 <td><textarea id="sayId" class="content" ng-model="say" ng-keyup="changeText()"></textarea></td>
 </tr>
 <tr>
 <td></td>
 <td class="fontColor">你還可以輸入{{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的時(shí)候，輸入空格的時(shí)候沒(méi)有計(jì)算空格長(zhǎng)度。
 console.log(length);
 $scope.textLength = 10 - length;
 if($scope.textLength<=0){
 $scope.textLength = 0;
 $("#sayId").val($scope.say.slice(0,10));
 }
 }
 });
</script>
</html>

運(yùn)行效果：