node js store values in file
var fs = require('fs');
var myOptions = {
name: 'Avian',
dessert: 'cake'
flavor: 'chocolate',
beverage: 'coffee'
};
var data = JSON.stringify(myOptions);
fs.writeFile('./config.json', data, function (err) {
if (err) {
console.log('There has been an error saving your configuration data.');
console.log(err.message);
return;
}
console.log('Configuration saved successfully.')
});node js store add values in file
const fs = require('fs');
let obj = {
table: []
};
fs.exists('myjsonfile.json', function(exists) {
if (exists) {
fs.readFile('myjsonfile.json', function readFileCallback(err, data) {
if (err) {
console.log(err);
} else {
obj = JSON.parse(data);
//Data that you want add to the file
for (i = 0; i < 5; i++) {
obj.table.push({
id: i,
square: i * i
});
}
let json = JSON.stringify(obj);
fs.writeFile('myjsonfile.json', json);
}
});
} else {
console.log("file not exists");
//Data that you want add to the file
for (i = 0; i < 5; i++) {
obj.table.push({
id: i,
square: i * i
});
}
let json = JSON.stringify(obj);
fs.writeFile('myjsonfile.json', json);
}
});Copyright © 2021 Codeinu
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