Run results for: JSON.stringify array vs join Updated

Run details:

User agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_14_6) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/88.0.4324.192 Safari/537.36

Browser: Chrome 88

Operating system: Mac OS X 10.14.6

Device Platform: Desktop

Date tested: 3 years ago

Test name	Executions per second
JSON.stringify	2284.4 Ops/sec
array.join + string template	1923.6 Ops/sec

Script Preparation code:

var arr_small = Array.from({ length: 10 }).map((_, i) => `test_val${i}`);
var arr_big = Array.from({ length: 10000 }).map((_, i) => `test_val${i}`);

Tests:

JSON.stringify
JSON.stringify(arr_small); JSON.stringify(arr_big);
array.join + string template
`["${arr_small.join('","')}"]`; `["${arr_big.join('","')}"]`;