Uncaught ReferenceError: isApp is not defined

Question

我在控制台中收到 "Uncaught ReferenceError: isApp is not defined"，从漫长的早晨开始，我一直试图找到解决此错误的方法，但没有得到太多，我的 isApp.js 和 mApp.js 都保存在名为 "js" 的文件夹中，有人可以吗帮我摆脱这件事....提前致谢

//"......isApp.js file code starts from here..............."
var iA = function () {
    var t = this;
    this.user;
    var IsInvite = false;
    this.serverUrl = someLocalhostUrl;
     //some function - structure of functions is shown below
  
  //this.function1 = function(){
        //do something
  
  //};
  
  //lot of function

    this.initialize = function () {
        t.getUser();
        var pk = typeof t.user;
        if (!(typeof t.user === 'object')) {
            t.user = null;
            t.setUser();
        }
    }();
};

var isApp = new iA(); 
//"......isApp.js file code endss  here..............."




//"......mApp.js file code starts from here..............."
var mApp = function () {
    //var PostUrl = "http://localhost:52015/"
    var PostUrl = isApp.serverUrl + "/";
    var t = this;
    var u = {};
    this.ph, this.loc;
    var user, Email, UserName;
    var LoggedIn;

    this.initiate = function () {
        u = isApp.getUser();
        if (u && u.LoggedIn) {
            if (window.location.href.indexOf("index") == -1)
                $.mobile.changePage("index.html#p-start");
            //window.location = "index.html#p-home";
        }
    };

   //some function - structure of functions is shown below
  
  //this.function1 = function(){
        //do something
  
  //};
  
  //lot of function
  
    
    this.initiate();
};

m = new mApp();


//"......mApp.js file code ends here..............."

<!DOCTYPE html>
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
    <title></title>
    <style>

    </style>
    <meta charset="utf-8" />
    <meta name="viewport" content="width=device-width, initial-scale=1">
    <!--css starts here-->
    <link href="css/jquery.mobile-1.4.5.css" rel="stylesheet" />
    <link href="css/custom.css" rel="stylesheet" />
    <!--css ends here-->

    <!--js starts here-->
    <script src="js/jquery.js"></script>
    <script src="js/jquery.mobile-1.4.5.js"></script>
    <script src="js/jquery.signalR-2.2.0.min.js"></script>
    <script src="js/mApp.js"></script>
    <script src="js/isApp.js"></script>
    <script src="js/home.js"></script>
    <!--js ends here-->
    <!--<script>
        $(function () {
            $('.image').click(function () {
                alert("selection needed");
            });
            document.getElementById("startDate").valueAsDate = new Date();
        });
    </script>-->
</head>
<body>
    <div data-role="page" id="p-start">
        <div data-role="main" class="ui-content ui-responsive ui-body-a">
            <div class="align-center">
                <h3>Its our Rocking app</h3>
                <a href="#p-login">
                    <img src="images/temp-logo.jpg" class="logo" />
                </a>
                
            </div>
            
        </div>

    </div> 

   
</body>
</html>

Answer 1

您在 isApp.js 文件之前加载了 mApp.js 文件，并且两个脚本都会立即执行，因此在执行 mApp.js 时函数还没有定义。

<script src="js/mApp.js"></script>
<script src="js/isApp.js"></script>

Uncaught ReferenceError: isApp is not defined

Uncaught ReferenceError: isApp is not defined

javascript

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referenceerror