Run results for: String Concat vs JSON.stringify

Run details:

User agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_12_1) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/55.0.2883.75 Safari/537.36

Browser: Chrome 55

Operating system: Mac OS X 10.12.1

Device Platform: Other

Date tested: 7 years ago

Test name	Executions per second
JSON.stringify	139.5 Ops/sec
String concat	168.5 Ops/sec

Script Preparation code:

var availableSizes = [];
for(var i=0;i<10000;i++){
  availableSizes.push({label: i, system: i});
}

Tests:

JSON.stringify
var output=[]; for(var i=0, len=availableSizes.length; i<len; i++){ output.push(JSON.stringify(availableSizes[i])); }
String concat
var output=[], SUPER_DELIM = '|', string; for(var i=0, len=availableSizes.length; i<len; i++){ string = Object.keys(availableSizes[i]).reduce(function(str, key) { return str + key + SUPER_DELIM; }, '|'); output.push(string); }