Question

使用JSON数据，javascript会改变对象的顺序：

{
    "01": { "disabled": 0, "factor": 10, "id": "01", "tickets": 0 },
    "02": { "disabled": 0, "factor": 10, "id": "02", "tickets": 0 },
    "03": { "disabled": 0, "factor": 10, "id": "03", "tickets": 0 },
    "04": { "disabled": 0, "factor": 10, "id": "04", "tickets": 0 },
    "05": { "disabled": 0, "factor": 10, "id": "05", "tickets": 0 },
    "06": { "disabled": 0, "factor": 10, "id": "06", "tickets": 0 },
    "07": { "disabled": 0, "factor": 10, "id": "07", "tickets": 0 },
    "08": { "disabled": 0, "factor": 10, "id": "08", "tickets": 0 },
    "09": { "disabled": 0, "factor": 10, "id": "09", "tickets": 0 },
    "10": { "disabled": 0, "factor": 10, "id": "10", "tickets": 0 },
    "11": { "disabled": 1, "factor": 40, "id": "11", "tickets": 0 }
}

对此：

{
    "10": { "disabled": 0, "factor": 10, "id": "10", "tickets": 0 },
    "11": { "disabled": 1, "factor": 40, "id": "11", "tickets": 0 },
    "01": { "disabled": 0, "factor": 10, "id": "01", "tickets": 0 },
    "02": { "disabled": 0, "factor": 10, "id": "02", "tickets": 0 },
    "03": { "disabled": 0, "factor": 10, "id": "03", "tickets": 0 },
    "04": { "disabled": 0, "factor": 10, "id": "04", "tickets": 0 },
    "05": { "disabled": 0, "factor": 10, "id": "05", "tickets": 0 },
    "06": { "disabled": 0, "factor": 10, "id": "06", "tickets": 0 },
    "07": { "disabled": 0, "factor": 10, "id": "07", "tickets": 0 },
    "08": { "disabled": 0, "factor": 10, "id": "08", "tickets": 0 },
    "09": { "disabled": 0, "factor": 10, "id": "09", "tickets": 0 }
}

注意＆＃34; 10＆＃34;和＆＃34; 11＆＃34;即使在最初的JSON中，开头的行也在最后。

我解决了这个问题：

var data = JSON.parse(json_data);
var keys = Object.keys(data).sort();

for ( var k in keys )
{
    var key = keys[k];
    var row = data[key];
    console.log(row);
};

如何防止javascript更改行的顺序？

那个错误（因为它）让我发疯了。： - /

感谢您的帮助。

Answer 1

您应该检查bpierre对"Does JavaScript Guarantee Object Property Order?"的答案。

总结一下，ECMAScript中对象的定义是

这是一个无序的属性集合[...]

在他的回答中，他建议在更新版本的JavaScript中使用Map。

所以答案是否定的，你不能阻止JavaScript改变JSON的顺序，因为首先没有确定的顺序。

防止javascript改变JSON的顺序

1 个答案: