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  • angular.isDefined()

    <!DOCTYPE html>
    <html>
    
        <head>
            <meta charset="UTF-8">
            <title>angular.isDefined</title>
        </head>
    
        <body ng-app="isDefinedExample">
            <h1>angular.isDefined</h1>
            <p>
                <span>描述:</span><br />
                <span>判断参数是否是定义引用</span>
            </p>
            <p>
                <span>使用方法:</span><br />
                <span>angular.isDefined(value)</span>
            </p>
            <p>
                <span>参数:</span><br />
                <span>value:判断的值</span><br />
            </p>
            <p>
                <span>返回值:</span><br />
                <span>boolean</span>
            </p>
            <hr />
            <div ng-controller="isDefinedcon">
                <!--{{vals}}-->
            </div>
        </body>
        <script src="../../js/angular.1.3.0.js" type="text/javascript" charset="utf-8"></script>
        <script type="text/javascript">
            angular.module('isDefinedExample', []).controller('isDefinedcon', function($scope) {
                var val = '';
           // var val; console.log(angular.isDefined(val)) $scope.vals
    = angular.isDefined(val); }) </script> </html>
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  • 原文地址:https://www.cnblogs.com/tanxiang6690/p/9766762.html
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