// update package.json version import fs from 'fs'; const packageJson = JSON.parse(fs.readFileSync('./package.json', 'utf8')); console.log(packageJson.version); // get node args const args = process.argv.slice(2); packageJson.version = args[0]; console.log(packageJson.version); // write package.json fs.writeFileSync('./package.json', JSON.stringify(packageJson, null, 2)); // read manifest.json const manifestJson = JSON.parse(fs.readFileSync('./manifest.json', 'utf8')); manifestJson.version = args[0]; // write manifest.json fs.writeFileSync('./manifest.json', JSON.stringify(manifestJson, null, 2));