What is the relationship between javascript objects and json

The relationship between JavaScript objects and JSON is: JSON is the string representation of JavaScript objects. JSON uses text to represent a JavaScript object information, which is essentially a string. You can use the "JSON.parse()" method to convert from a JSON string to a js object.

The operating environment of this tutorial: Windows 10 system, JavaScript version 1.8.5, Dell G3 computer.

What is the relationship between JavaScript objects and json

JSON is a string representation of a JS object. It uses text to represent the information of a JS object, which is essentially a string.

For example

var` `obj = {a: ``'Hello'``, b: ``'World'``}; ``//这是一个对象，注意键名也是可以使用引号包裹的
var` `json = ``'{"a": "Hello", "b": "World"}'``; ``//这是一个 JSON 字符串，本质是一个字符串

JSON and JS objects are converted to each other

To convert from JSON string to JS object, use the JSON.parse() method:

var` `obj = JSON.parse(``'{"a": "Hello", "b": "World"}'``); ``//结果是 {a: 'Hello', b: 'World'}

To convert from a JS object to a JSON string, use the JSON.stringify() method:

var` `json = JSON.stringify({a: ``'Hello'``, b: ``'World'``}); ``//结果是 '{"a": "Hello", "b": "World"}'

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