How to convert json string to object in es6

Conversion steps: 1. Use the JSON.parse() method to convert the json string into an array, the syntax is "JSON.parse(json string)"; 2. Use the expansion operator "..." Just take out the array elements one by one and store them in an empty object "{}", the syntax is "{...array object}".

The operating environment of this tutorial: Windows 7 system, ECMAScript version 6, Dell G3 computer.

JSON

• JSON is a special string format, essentially a string

• Like objects and arrays, if the key and value inside are in string format, they are wrapped in double quotes (must be double quotes)

Example:

var jsonStr = '{ "name": "cxh", "sex": "man" }';

es6 method of converting a json string into an object

In es6, you can use arrays and use JSON.parse( ) method and the spread operator "..." to convert json strings into objects.

Conversion steps:

Step 1. Use the JSON.parse() method to convert the json string into an array

JSON.parse() method converts data into JavaScript objects

var jsonStr = '[1,2,3,{"a":1}]';
var arr=JSON.parse(jsonStr);
console.log(arr);

Step 2: Use the spread operator "..." Convert an array into an object

The spread operator "..." can expand the array, take out the array elements one by one, and then store them in an empty object "{}".

const obj = {...arr} ;
console.log(obj);

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