stringify-test.js

var async = require('async');
var asyncStringify = require('async-json');
var obj = require('./obj.json');

var start = Date.now();
for(var i=0,l=8; i<l; i++) {
  JSON.stringify(obj);
}
console.log('sync stringify', Date.now() - start);


start = Date.now();
async.times(8, function(i, next) {
    // console.log('i outside', i, 'arguments', arguments.length);
    asyncStringify.stringify(obj, function(err) {
        if (err) throw err;
        // console.log('i inside', i, 'arguments', arguments.length);
        next(null, {});
    });
}, function(err) {
    if (err) throw err;
    console.log('async stringify', Date.now() - start);
})

// setTimeout(function() {}, 3000);


// var objMany = require('./obj-many.json');

var objMany = {};
for(var x = 0, y = 70000; x < y; x++) {
    objMany['a' + x] = 'test';
}

var start = Date.now();
var i = 0;
for(var x in objMany) {
    i++;
}
console.log('for each', i, Date.now() - start);

start = Date.now();
var j = 0;
for(var x = 0, y = Object.keys(objMany).length; x < y; x++) {
    j++;
}
console.log('for arr', j, Date.now() - start);