"node js store add values in file" Code Answer's
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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);
}
});
Source: stackoverflow.com
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