Question

我一直收到这条消息。当我在“经典”HTML页面中尝试它时，它工作正常。但是当我在VS 2013中尝试时，我遇到了这个问题。

ms-appx第9行第9行未处理的异常：//eabd59c7-f115-49ff-9716-94243f12fc3b/js/Action.js 0x800a138f - JavaScript运行时错误：无法获取未定义或null的属性“slice”和借鉴

我是新来的。有人能帮我吗？！这是代码：

<!DOCTYPE html>
<html>
<head>
    <meta charset="utf-8" />
    <title>Sage_Cell_Server</title>

    <!-- WinJS references -->
    <link href="//Microsoft.WinJS.2.0/css/ui-dark.css" rel="stylesheet" />
    <script src="//Microsoft.WinJS.2.0/js/base.js"></script>
    <script src="//Microsoft.WinJS.2.0/js/ui.js"></script>

    <!-- Sage_Cell_Server references -->
    <link href="/css/default.css" rel="stylesheet" />
    <script src="/js/default.js"></script>
    <script src="/js/jquery-2.1.1.min.js"></script>
    <script src="/js/Action.js"></script>


    <script>

        $(function () {
            // Make *any* div with class 'compute' a Sage cell
            sagecell.makeSagecell({
                inputLocation: 'div.compute',
                template: sagecell.templates.minimal,
                evalButtonText: 'Evaluate'
            });

    // Make the div with id 'mycell' a Sage cell
    sagecell.makeSagecell({
        inputLocation: '#mycell',
        template: sagecell.templates.minimal,
        evalButtonText: 'Activate'

    });
});
    </script>



</head>
<body>
    <h1>Embedded Sage Cells</h1>

    <h2>Factorial</h2>
    Click the “Activate” button below to calculate factorials.
    <div id="mycell">
        <script type="text/x-sage">
            @interact
            def _(a=(1, 10)):
            print factorial(a)
        </script>
    </div>

    <h2>Your own computations</h2>
    Type your own Sage computation below and click “Evaluate”.
    <div class="compute">
    <script type="text/x-sage">
        plot(sin(x), (x, 0, 2*pi))
    </script></div>
    <div class="compute">
        <script type="text/x-sage">
            @interact
            def f(n=(0,10)):
            print 2^n
        </script>
    </div>
</body>
</html>

Action.js ---＆gt;这是问题

var _gaq = _gaq || [];
_gaq.push(['sagecell._setAccount', 'UA-29124745-1']);
_gaq.push(['sagecell._setDomainName', 'sagemath.org']);
_gaq.push(['sagecell._trackPageview']);

(function() {
    var ga = document.createElement('script'); ga.type = 'text/javascript'; ga.async = true;
    ga.src = ('https:' == document.location.protocol ? 'https://ssl' : 'http://www') + '.google-analytics.com/ga.js';
    var s = document.getElementsByTagName('script')[0]; s.parentNode.insertBefore(ga, s);
})();

(function() {
"use strict";
var undefined;

// Make a global sagecell namespace for our functions
window.sagecell = window.sagecell || {};

if (!document.head) {
    document.head = document.getElementsByTagName("head")[0];
}

var $ = jQuery.noConflict(true);
if (jQuery === undefined) {
    window.$ = jQuery = $;
}
sagecell.jQuery = $;

sagecell.URLs = {};

(function () {
    /* Read the Sage Cell server's  root url from one of the following locations:
         1. the variable sagecell.root
         2. a tag of the form <link property="sagecell-root" href="...">
         3. the root of the URL of the executing script */
    var el;
    if (sagecell.root) {
        sagecell.URLs.root = sagecell.root;
    } else if ((el = $("link[property=sagecell-root]")).length > 0) {
        sagecell.URLs.root = el.last().attr("href");
    } else {
        /* get the first part of the last script element's src that loaded something called 'embedded_sagecell.js'
           also, strip off the static/ part of the url if the src looked like 'static/embedded_sagecell.js'
           modified from MathJax source
           We could use the jquery reverse plugin at  http://www.mail-archive.com/discuss@jquery.com/msg04272.html 
           and the jquery .each() to get this as well, but this approach avoids creating a reversed list, etc. */
        var scripts = (document.documentElement || document).getElementsByTagName("script");
        var namePattern = /^.*?(?=(?:static\/)?embedded_sagecell.js)/;
        for (var i = scripts.length-1; i >= 0; i--) {
            var m = (scripts[i].src||"").match(namePattern);
            if (m) {
                var r = m[0];
                break;
            }
        }
        if (r === "" || r === "/") {
            r = window.location.protocol + "//" + window.location.host + "/";
        }
        sagecell.URLs.root = r;
    }
    if (sagecell.URLs.root.slice(-1) !== "/") {
        sagecell.URLs.root += "/";
    }
}());

...

JavaScript运行时错误：无法获取属性＆＃39; slice＆＃39;未定义或空引用

0 个答案: