Nodejs converts JSON string into JSON object error solution

How to convert a JSON string into a JSON object?

JSON.parse(str) JSON is a built-in object in JavaScript, which provides methods for converting JSON objects to strings and vice versa;

Here comes the problem. I understand the principle but it still reports an error!

This is one of my JSON files, which contains some defined JSON test data;

This is the core code;

This is an error message;

Why is the error reported?

Because there is a space at the beginning of my json file. That's it.

OK, modify the code and test

Use trim to remove extra spaces at the beginning

ok, passed!

Nodejs parses JSON data

In nodejs, you don’t need to import the json2.js file like in js, you can directly operate the JSON object

Convert string to JSON

var str = "{ ' a ' : ' 1 ' , ' b ' : ' 2 ' }";
var json = JSON.parse(str);

JSON to string

var json = {
   a : ' 1 ',
   b : ' 2'
};
var str = JSON.stringify(json);

The above is my personal experience. I hope it can give you a reference. I also hope that you will support 123WORDPRESS.COM.