是否保留JSON列表中元素的顺序? [英] Is the order of elements in a JSON list preserved?

问题描述

我注意到JSON对象中元素的顺序不是原始顺序.

I've noticed the order of elements in a JSON object not being the original order.

JSON列表的元素呢?他们的订单得到维护吗?

What about the elements of JSON lists? Is their order maintained?

推荐答案

是的，将保留JSON数组中元素的顺序.来自 RFC 7159 -JavaScript对象符号(JSON)数据交换格式 (重点是我的):

Yes, the order of elements in JSON arrays is preserved. From RFC 7159 -The JavaScript Object Notation (JSON) Data Interchange Format (emphasis mine):

对象是零个或多个名称/值的无序集合 对，其中名称是字符串，值是字符串，数字， 布尔值，null，对象或数组.

An object is an unordered collection of zero or more name/value pairs, where a name is a string and a value is a string, number, boolean, null, object, or array.

一个数组是一个零个或多个值的有序序列.

An array is an ordered sequence of zero or more values.

术语对象"和数组"来自以下约定: JavaScript.

The terms "object" and "array" come from the conventions of JavaScript.

某些实现也确实保留了JSON对象的顺序，但这不能保证.

Some implementations do also preserve the order of JSON objects as well, but this is not guaranteed.

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