how to update a json file javascript
const fs = require('fs');
const fileName = './file.json';
const file = require(fileName);
file.key = "new value";
fs.writeFile(fileName, JSON.stringify(file), function writeJSON(err) {
if (err) return console.log(err);
console.log(JSON.stringify(file));
console.log('writing to ' + fileName);
});update file json trong javascript
// read file and make object
let content = JSON.parse(fs.readFileSync('file.json', 'utf8'));
// edit or add property
content.expiry_date = 999999999999;
//write file
fs.writeFileSync('file.json', JSON.stringify(content));Copyright © 2021 Codeinu
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