JS对象文字和JSON字符串有什么区别？ [英] What is the difference between a JS object literal and a JSON string?

问题描述

我对Object Literals，JSON，JavaScript Objects的具体含义感到困惑，对我来说，它们看起来很相似：

I have confusion about what exactly people mean by Object Literals, JSON, JavaScript Objects, to me they seem similar:

{foo: 'bar', bar : 'baz'}

AFAIK，上面是对象字面值，json以及javascript对象，不是吗？

AFAIK, above is object literal, json as well as javascript object, isn't it?

对象文字和json是否意味着同样的事情？

Does object literal and json mean the same thing ?

你们如何区分哪个是什么？

How do you guys differentiate which is what?

推荐答案

JSON 只是一种数据格式，像XML一样。 True J​​SON应该包含双引号括起来的键，如下所示：

JSON is a just a data format, like XML. True JSON should have the keys surrounded by double quotes, like so:

{"foo":"bar"}

JavaScript对象是JavaScript语言的一部分，并且具有相关的功能，例如原型。

JavaScript Objects are part of the JavaScript language, and have associated things such as a prototype.

对象文字正在创建一个带括号的javascript对象，而不是使用 new keyword，或 Object.create（）。

Object literals is creating a javascript object in place with brackets as opposed to using the new keyword, or Object.create().

//object literal
var foo = {};

//equivalent
var foo = new Object();

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