how to write to a json file in javascript

1'use strict';
2
3const fs = require('fs');
4
5let student = { 
6    name: 'Mike',
7    age: 23, 
8    gender: 'Male',
9    department: 'English',
10    car: 'Honda' 
11};
12 
13let data = JSON.stringify(student, null, 2);
14
15fs.writeFile('student-3.json', data, (err) => {
16    if (err) throw err;
17    console.log('Data written to file');
18});
19
20console.log('This is after the write call');
21

1fs.writeFile ("file.json", JSON.stringify(data), function(err) {
2    if (err) throw err;
3    console.log('complete');
4    }
5);

1var fs = require('fs');
2
3var data = {}
4data.table = []
5for (i=0; i <26 ; i++){
6   var obj = {
7       id: i,
8       square: i * i
9   }
10   data.table.push(obj)
11}
12fs.writeFile ("input.json", JSON.stringify(data), function(err) {
13    if (err) throw err;
14    console.log('complete');
15    }
16);

1const fs = require('fs');
2const data = {
3  data: "abc",
4  stuff: 10,
5  more_data: "1 2 3 4 3 2 1",
6};
7const jsonString = JSON.stringify(data);
8fs.writeFile('./data.json', jsonString, err => {
9  if (err) {
10    console.log('Error writing file', err)
11  } else {
12    console.log('Successfully wrote file')
13  }
14});

1const fs = require('fs');
2const path = require('path');
3
4let student = { 
5    name: 'Mike',
6    age: 23, 
7    gender: 'Male',
8    department: 'English',
9    car: 'Honda' 
10};
11 
12fs.writeFileSync(path.resolve(__dirname, 'student.json'), JSON.stringify(student));
13