Mootools-检查CSS或JS文件 [英] Mootools - Check for css or js files

问题描述

我知道我可以使用Asset类来附加新的CSS或JS文件.但是，如果我想检查资产之前是否存在css或js文件? 有一种方法? 谢谢

I know for append new css or js file I can use Asset class. But if i want check if css or js files are present before Asset?? There is a way? Thx

推荐答案

您可以在将其带入资产时为其分配ID，并检查dom是否存在:

you can assign ids to your assets as you bring them in and check against the dom for their presence:

Asset.javascript("https://github.com/DimitarChristoff/tippable/raw/master/Source/tippable.js", {
    id: "someid",
    onload: function() {
        alert("loaded");
        if (document.id("someid"))
            alert("already loaded");
    }
});

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