为什么我的JQuery在IE上无法加载？

Question

为什么我的JQuery在IE上无法加载？

javascriptjqueryinternet-explorer

5

我做了这个JavaScript测验：http://utbm.trunat.fr/CIP/quiz/

在普通浏览器上可以运行，但在Internet Explorer中甚至无法加载。

看起来它无法识别initQuiz()函数。

你有任何想法如何解决这个问题吗？

- Natim

消息：意外调用方法或属性访问。行：113 字符：460 代码：0 URI：http://utbm.trunat.fr/CIP/quiz/js/jquery-1.4.4.min.js消息：对象不支持此属性或方法行：110 字符：6 代码：0 URI：http://utbm.trunat.fr/CIP/quiz/js/start-quiz.js - simon

1

我喜欢浏览器分为两类：普通浏览器和IE。 - David Tang

1个回答

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- David Hedlund · Accepted Answer

Internet Explorer doesn't accept the trailing comma:

question = {'texte': $(this).attr("texte"),
    'sound': $(this).attr("sound"),}

Apparently, another error comes from this line:
```
$('title').html(QUIZ_TITLE[lang]);
```
Turns out you can't set the title like that in IE. Use document.title = QUIZ_TITLE[lang] instead.

A third error is that you're introducing a new variable, question without the var keyword, which is an error in IE. You're doing it again, later on, in response. Update your loadXML as such:

function loadXML(xml) {
   $(xml).find("question").each(function() {
    var question = {'texte': $(this).attr("texte"), 'sound': $(this).attr("sound")};

      reponses = [];
      $(this).find('carre').find('reponse').each(function() {
        var reponse = {'texte': $(this).text(), 'sound': $(this).attr("sound"), 'bonne': false};
        if($(this).attr('bonne') == "vrai") reponse['bonne'] = true;            
        reponses.push(reponse);
     });

     question['reponses'] = reponses;
     questions.push(question);
   });
   startGame(questions);
}

A fourth error is in the way you're verifying that an answer is correct.
```
if($(this).attr('data-type') == 'true')
```
You compare the value of the data-type attribute to the string value "true", but when you assign the value, you set it to the boolean value true:
```
$('#r'+(i+1)+'input').attr('data-type', r.bonne);
```
To make sure that you're always comparing string values, for instance, you could set the value as such:
```
$('#r'+(i+1)+'input').attr('data-type', r.bonne.toString());
```