Run results for: Normal for loop vs JSON.stringify to detect Inequality for Array of Objects.

Run details:

User agent: Mozilla/5.0 (Linux; Android 9; ONEPLUS A6000 Build/PKQ1.180716.001; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/70.0.3538.80 Mobile Safari/537.36 [FB_IAB/Orca-Android;FBAV/190.0.0.22.95;]

Browser: Chrome Mobile 70

Operating system: Android

Device Platform: Mobile

Date tested: 6 years ago

Test name	Executions per second
Normal looping to detect inequality	71542.2 Ops/sec
JSON.stringify to detect inequality	20948.8 Ops/sec

Script Preparation code:

window.foo = [{'name':'my name', 'age':21, 'occupation':'programmer', 'country':'malaysia', 'mobile_OS':'android'}, {'name':'my name', 'age':21, 'occupation':'programmer', 'country':'malaysia', 'mobile_OS':'android'}, {'name':'my name', 'age':21, 'occupation':'programmer', 'country':'malaysia', 'mobile_OS':'android'}, {'name':'my name', 'age':21, 'occupation':'programmer', 'country':'malaysia', 'mobile_OS':'android'}, {'name':'my name', 'age':21, 'occupation':'programmer', 'country':'malaysia', 'mobile_OS':'android'}, {'name':'my name', 'age':21, 'occupation':'programmer', 'country':'malaysia', 'mobile_OS':'android'}, {'name':'my name', 'age':21, 'occupation':'programmer', 'country':'malaysia', 'mobile_OS':'android'}, {'name':'my name', 'age':21, 'occupation':'programmer', 'country':'malaysia', 'mobile_OS':'android'}, {'name':'my name', 'age':21, 'occupation':'programmer', 'country':'malaysia', 'mobile_OS':'android'}, {'name':'my name', 'age':21, 'occupation':'programmer', 'country':'malaysia', 'mobile_OS':'android'}, {'name':'my name', 'age':21, 'occupation':'programmer', 'country':'malaysia', 'mobile_OS':'android'}, {'name':'my name', 'age':21, 'occupation':'programmer', 'country':'malaysia', 'mobile_OS':'android'}, {'name':'my name', 'age':21, 'occupation':'programmer', 'country':'malaysia', 'mobile_OS':'android'}, {'name':'my name', 'age':21, 'occupation':'programmer', 'country':'malaysia', 'mobile_OS':'android'}, {'name':'my name', 'age':21, 'occupation':'programmer', 'country':'malaysia', 'mobile_OS':'android'}, {'name':'my name', 'age':21, 'occupation':'programmer', 'country':'malaysia', 'mobile_OS':'android'}, {'name':'my name', 'age':21, 'occupation':'programmer', 'country':'malaysia', 'mobile_OS':'android'}, {'name':'my name', 'age':21, 'occupation':'programmer', 'country':'malaysia', 'mobile_OS':'android'}, {'name':'my name', 'age':21, 'occupation':'programmer', 'country':'malaysia', 'mobile_OS':'android'}, {'name':'my name', 'age':21, 'occupation':'programmer', 'country':'malaysia', 'mobile_OS':'android'}, {'name':'my name', 'age':21, 'occupation':'programmer', 'country':'malaysia', 'mobile_OS':'android'}, {'name':'my name', 'age':21, 'occupation':'programmer', 'country':'malaysia', 'mobile_OS':'android'}, {'name':'my name', 'age':21, 'occupation':'programmer', 'country':'malaysia', 'mobile_OS':'android'}, {'name':'my name', 'age':21, 'occupation':'programmer', 'country':'malaysia', 'mobile_OS':'android'}, {'name':'my name', 'age':21, 'occupation':'programmer', 'country':'malaysia', 'mobile_OS':'android'}, {'name':'my name', 'age':21, 'occupation':'programmer', 'country':'malaysia', 'mobile_OS':'android'}, {'name':'my name', 'age':21, 'occupation':'programmer', 'country':'malaysia', 'mobile_OS':'android'}, {'name':'my name', 'age':21, 'occupation':'programmer', 'country':'malaysia', 'mobile_OS':'android'}, {'name':'my name', 'age':21, 'occupation':'programmer', 'country':'malaysia', 'mobile_OS':'android'}, {'name':'my name', 'age':21, 'occupation':'programmer', 'country':'malaysia', 'mobile_OS':'android'}];
window.bar = [{'name':'my name', 'age':21, 'occupation':'programmer', 'country':'malaysia', 'mobile_OS':'android'}, {'name':'my name', 'age':21, 'occupation':'programmer', 'country':'malaysia', 'mobile_OS':'android'}, {'name':'my name', 'age':21, 'occupation':'programmer', 'country':'malaysia', 'mobile_OS':'android'}, {'name':'my name', 'age':21, 'occupation':'programmer', 'country':'malaysia', 'mobile_OS':'android'}, {'name':'my name', 'age':21, 'occupation':'programmer', 'country':'malaysia', 'mobile_OS':'ios'}, {'name':'my name', 'age':21, 'occupation':'programmer', 'country':'malaysia', 'mobile_OS':'android'}, {'name':'my name', 'age':21, 'occupation':'programmer', 'country':'malaysia', 'mobile_OS':'android'}, {'name':'my name', 'age':21, 'occupation':'programmer', 'country':'malaysia', 'mobile_OS':'android'}, {'name':'my name', 'age':21, 'occupation':'programmer', 'country':'malaysia', 'mobile_OS':'android'}, {'name':'my name', 'age':21, 'occupation':'programmer', 'country':'malaysia', 'mobile_OS':'android'}, {'name':'my name', 'age':21, 'occupation':'programmer', 'country':'malaysia', 'mobile_OS':'android'}, {'name':'my name', 'age':21, 'occupation':'programmer', 'country':'malaysia', 'mobile_OS':'android'}, {'name':'my name', 'age':21, 'occupation':'programmer', 'country':'malaysia', 'mobile_OS':'android'}, {'name':'my name', 'age':21, 'occupation':'programmer', 'country':'malaysia', 'mobile_OS':'android'}, {'name':'my name', 'age':21, 'occupation':'programmer', 'country':'malaysia', 'mobile_OS':'android'}, {'name':'my name', 'age':21, 'occupation':'programmer', 'country':'malaysia', 'mobile_OS':'android'}, {'name':'my name', 'age':21, 'occupation':'programmer', 'country':'malaysia', 'mobile_OS':'android'}, {'name':'my name', 'age':21, 'occupation':'programmer', 'country':'malaysia', 'mobile_OS':'android'}, {'name':'my name', 'age':21, 'occupation':'programmer', 'country':'malaysia', 'mobile_OS':'android'}, {'name':'my name', 'age':21, 'occupation':'programmer', 'country':'malaysia', 'mobile_OS':'android'}, {'name':'my name', 'age':21, 'occupation':'programmer', 'country':'malaysia', 'mobile_OS':'android'}, {'name':'my name', 'age':21, 'occupation':'programmer', 'country':'malaysia', 'mobile_OS':'android'}, {'name':'my name', 'age':21, 'occupation':'programmer', 'country':'malaysia', 'mobile_OS':'android'}, {'name':'my name', 'age':21, 'occupation':'programmer', 'country':'malaysia', 'mobile_OS':'android'}, {'name':'my name', 'age':21, 'occupation':'programmer', 'country':'malaysia', 'mobile_OS':'android'}, {'name':'my name', 'age':21, 'occupation':'programmer', 'country':'malaysia', 'mobile_OS':'android'}, {'name':'my name', 'age':21, 'occupation':'programmer', 'country':'malaysia', 'mobile_OS':'android'}, {'name':'my name', 'age':21, 'occupation':'programmer', 'country':'malaysia', 'mobile_OS':'android'}, {'name':'my name', 'age':21, 'occupation':'programmer', 'country':'malaysia', 'mobile_OS':'android'}, {'name':'my name', 'age':21, 'occupation':'programmer', 'country':'malaysia', 'mobile_OS':'android'}];

Tests:

Normal looping to detect inequality
let length = window.foo.length; let same = true; for(var i = 0;i<length;i++){ if(window.foo[i].name !== window.bar[i].name){ same = false; }else if(window.foo[i].age !== window.bar[i].age){ same = false; }else if(window.foo[i].occupation !== window.bar[i].occupation){ same = false; }else if(window.foo[i].country !== window.bar[i].country){ same = false; }else if(window.foo[i].mobile_OS !== window.bar[i].mobile_OS){ same = false; } if(!same){ break; } }
JSON.stringify to detect inequality
JSON.stringify(window.foo) === JSON.stringify(window.bar);

Run results for: Normal for loop vs JSON.stringify to detect Inequality for Array of Objects.

Test JSON.stringify performance

Normal looping to detect inequality

JSON.stringify to detect inequality