node js rewrite to json file code example

Example 1: HOW WRITE AND SAVE JSON FILE IN NODEJS

'use strict';

const fs = require('fs');

let student = { 
    name: 'Mike',
    age: 23, 
    gender: 'Male',
    department: 'English',
    car: 'Honda' 
};
 
let data = JSON.stringify(student, null, 2);

fs.writeFile('student-3.json', data, (err) => {
    if (err) throw err;
    console.log('Data written to file');
});

console.log('This is after the write call');

Example 2: edit json via nodejs

//Using edit-json-file for NodeJS, based off the NPM documentation for edit-file-json
const editJsonFile = require("edit-json-file");
let file = editJsonFile(`${__dirname}/filename.json`);
file.set("name", "value");
file.save();
file = editJsonFile(`${__dirname}/filename.json`, {
    autosave: true
});