格式化此 JavaScript 行

问题描述

我正在尝试在弹出窗口中格式化这行代码，但我遇到了 unterminated string literal 错误.

I am trying to format this line of code in my popup window, but i am facing unterminated string literal error.

谁能告诉我如何最好地格式化它.

Can somebody please tell me how best I could format this.

window.setTimeout("winId.document.write('<script src="../js/tiny_mce/tiny_mce.js" type="text/javascript"></script>
')", 10);

还要指出这行代码在弹出窗口中是否可以正常工作?

Also point out if this particular line of code would work fine in the popup?

推荐答案

最好不要使用字符串，而是使用匿名函数:

Best not to use a string, but an anonymous function instead:

window.setTimeout(function () {
    winId.document.write(
      '<script src="../js/tiny_mce/tiny_mce.js" type="text/javascript"></script>
'
    );
}, 10);

在 setTimeout 和 setInterval 中使用字符串与 eval() 密切相关，应仅在极少数情况下使用.请参阅 http://dev.opera.com/articles/view/高效的javascript/?page=2

Using strings in setTimeout and setInterval is closely related to eval(), and should only be used in rare cases. See http://dev.opera.com/articles/view/efficient-javascript/?page=2

还可能值得注意的是，document.write() 将无法在已解析的文档上正常工作.不同的浏览器会给出不同的结果，大多数会清除内容.另一种方法是使用 DOM 添加脚本:

It might also be worth noting that document.write() will not work correctly on an already parsed document. Different browsers will give different results, most will clear the contents. The alternative is to add the script using the DOM:

window.setTimeout(function () {
    var winDoc = winId.document;
    var sEl = winDoc.createElement("script");
    sEl.src = "../js/tiny_mce/tiny_mce.js";
    winDoc.getElementsByTagName("head")[0].appendChild(sEL);
}, 10);

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