Javascript: JSON Formatter

jsonformat.js

// jsonformat.js
//   a simple script that format JSON data in a more readable way.
//   by Calle Robertsson, calle@upset.se, 2015.
var fs = require('fs');

var filename = process.argv[2];

if (!filename) {
    throw new Error('Missing command line argument for file name.');
}
 
fs.readFile(filename, 'utf8', function (err, data) {
        if (err) throw err;
        parse(data);
        });
 
function parse(text) {
      var foo = JSON.parse(text);
      console.log(JSON.stringify(foo, null, 2));
}
// eof