大家帮我分析下代码 ?for in循环

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代码:

    var defs = new Array();
    for(var i=0; i < Abbreviations.length; i++){
        var current_abbr = Abbreviations[i];
        var definition = current_abbr.getAttribute("title");
        var key = current_abbr.lastChild.nodeValue;
        defs[key] = definition;
    }
    var dlist = document.createElement("dl");
    for(key in defs){
        var definition = defs[key];
        var dtitle = document.createElement("dt");
        var dtitle_text = document.createTextNode(key);
        dtitle.appendChild(dtitle_text);
        var ddesc = document.createElement("dd");
        var ddesc_text = document.createTextNode(definition);
        ddesc.appendChild(ddesc_text);
        dlist.appendChild(dtitle);
        dlist.appendChild(ddesc);
    }

引用:

原帖由 iawsky 于 2010-6-3 21:19 发表
遍历defs