从json创建下拉列表 [英] create drop down list from json

问题描述

我有一个这样的json：

I have a json in this form:

{"COLUMNS":["ID", "Name"],"DATA":
[ 
  ["1","Joe"],
  ["2", "Sam"],
  ["3", "Doug"],
]
}

我正在寻找一个如何从javascript中的这个数据创建一个下拉列表，但所有的json /下拉列表的例子列出了json是不同的格式。我还没有使用javascript很多或者json数据，所以我不知道从哪里开始。任何人都可以指出一个伟大的教程或例子的方向吗？谢谢。

and I was looking for an example of how to create a drop down list from this data in javascript but all the examples of json/dropdown list the json is in a different format. I haven't worked with javascript much or json data at all so I'm not sure about where to start. Can anyone point me in the direction of a great tutorial or examples? Thanks.

推荐答案

JavaScript：

The JavaScript:

window.onload = function () {
    var JSON = {
        "COLUMNS":["ID", "Name"],
        "DATA": [ 
            ["1","Joe"],
            ["2", "Sam"],
            ["3", "Doug"]
        ]
    }, select = document.getElementById("selector");
    for (var i = 0, at = JSON.DATA[i], id = at[0], name = at[1]; i < JSON.DATA.length; i++) {
        var option = document.createElement("option");
        option.value = id;
        option.textContent = name;
        select.appendChild(option);
    };
};

请确保如果您的JSON是字符串形式，那么您首先使用 JSON.parse（）;

Please make sure that if your JSON is in string form, that you parse it first using JSON.parse();

HTML：

<select id="selector"></select>

JSFiddle示例： http://jsfiddle.net/su7sr/1

The JSFiddle Example: http://jsfiddle.net/su7sr/1

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