JS基础 字典相关操作

最近项目JS中需要建一个特殊的颜色库，需要用到类似C#中的dictionary的概念 然后一查发现JS没有dictionary 而是Array

初始化Array

colorDic = new Array();

colorDiv["耕地"] = "#009900";
colorDiv["园地"] = "#009933";
colorDiv["林地"] = "#66CC33";
colorDiv["草地"] = "#00CC00";

调用

alert(colorDic["耕地"])

遍历

var output = "";
        for (var key in colordic) {
            if (output == "") {
                output = colordic[key];
            }
            else {
                output += "|" + colordic[key];
            }
        }
        alert(output);

注意 如果只是单纯的数据 其实也可以进行遍历 只是key变成了1、2、3

var dic2 = ["a", "b", "c", "d"];     
        //遍历字典
        for (var key in dic2) {
            //alert(dic2[key]);
        }